U+0031 Digit One
U+0031 was added in Unicode version 1.1 in 1993. It belongs to the block Basic Latin in the Basic Multilingual Plane.
This character is a Decimal Number and is commonly used, that is, in no specific script. The codepoint has the decimal value 1.
The glyph is not a composition. Its East Asian Width is narrow. In bidirectional text it is written as European number from left to right. When changing direction it is not mirrored. This number joins with other adjacent letters and numbers to form a word. U+0031 forms a number with similar characters, which prevents a line break inside it. The glyph can be confused with one other glyph.
This character is designated as an emoji. It will be rendered as monochrome character on conforming platforms. To enable colorful emoji display, you can combine it with Variation Selector-16: 1️ See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sports, where it commonly denotes the first, leading, or top thing in a group. 1 is the unit of counting or measurement, a determiner for singular nouns, and a gender-neutral pronoun. Historically, the representation of 1 evolved from ancient Sumerian and Babylonian symbols to the modern Arabic numeral.
In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number. In digital technology, 1 represents the "on" state in binary code, the foundation of computing. Philosophically, 1 symbolizes the ultimate reality or source of existence in various traditions.
Representations
| System | Representation |
|---|---|
| Nº | 49 |
| UTF-8 | 31 |
| UTF-16 | 00 31 |
| UTF-32 | 00 00 00 31 |
| URL-Quoted | %31 |
| HTML hex reference | 1 |
| Encoding: ASCII (hex bytes) | 31 |
| Encoding: BIG5 (hex bytes) | 31 |
| Encoding: BIG5HKSCS (hex bytes) | 31 |
| Encoding: CP037 (hex bytes) | F1 |
| Encoding: CP273 (hex bytes) | F1 |
| Encoding: CP424 (hex bytes) | F1 |
| Encoding: CP437 (hex bytes) | 31 |
| Encoding: CP500 (hex bytes) | F1 |
| Encoding: CP720 (hex bytes) | 31 |
| Encoding: CP737 (hex bytes) | 31 |
| Encoding: CP775 (hex bytes) | 31 |
| Encoding: CP850 (hex bytes) | 31 |
| Encoding: CP852 (hex bytes) | 31 |
| Encoding: CP855 (hex bytes) | 31 |
| Encoding: CP856 (hex bytes) | 31 |
| Encoding: CP857 (hex bytes) | 31 |
| Encoding: CP858 (hex bytes) | 31 |
| Encoding: CP860 (hex bytes) | 31 |
| Encoding: CP861 (hex bytes) | 31 |
| Encoding: CP862 (hex bytes) | 31 |
| Encoding: CP863 (hex bytes) | 31 |
| Encoding: CP864 (hex bytes) | 31 |
| Encoding: CP865 (hex bytes) | 31 |
| Encoding: CP866 (hex bytes) | 31 |
| Encoding: CP869 (hex bytes) | 31 |
| Encoding: CP874 (hex bytes) | 31 |
| Encoding: CP875 (hex bytes) | F1 |
| Encoding: CP932 (hex bytes) | 31 |
| Encoding: CP949 (hex bytes) | 31 |
| Encoding: CP950 (hex bytes) | 31 |
| Encoding: CP1006 (hex bytes) | 31 |
| Encoding: CP1026 (hex bytes) | F1 |
| Encoding: CP1125 (hex bytes) | 31 |
| Encoding: CP1140 (hex bytes) | F1 |
| Encoding: CP1250 (hex bytes) | 31 |
| Encoding: CP1251 (hex bytes) | 31 |
| Encoding: CP1252 (hex bytes) | 31 |
| Encoding: CP1253 (hex bytes) | 31 |
| Encoding: CP1254 (hex bytes) | 31 |
| Encoding: CP1255 (hex bytes) | 31 |
| Encoding: CP1256 (hex bytes) | 31 |
| Encoding: CP1257 (hex bytes) | 31 |
| Encoding: CP1258 (hex bytes) | 31 |
| Encoding: EUC_JP (hex bytes) | 31 |
| Encoding: EUC_JIS_2004 (hex bytes) | 31 |
| Encoding: EUC_JISX0213 (hex bytes) | 31 |
| Encoding: EUC_KR (hex bytes) | 31 |
| Encoding: GB2312 (hex bytes) | 31 |
| Encoding: GBK (hex bytes) | 31 |
| Encoding: GB18030 (hex bytes) | 31 |
| Encoding: HZ (hex bytes) | 31 |
| Encoding: ISO2022_JP (hex bytes) | 31 |
| Encoding: ISO2022_JP_1 (hex bytes) | 31 |
| Encoding: ISO2022_JP_2 (hex bytes) | 31 |
| Encoding: ISO2022_JP_2004 (hex bytes) | 31 |
| Encoding: ISO2022_JP_3 (hex bytes) | 31 |
| Encoding: ISO2022_JP_EXT (hex bytes) | 31 |
| Encoding: ISO2022_KR (hex bytes) | 31 |
| Encoding: LATIN_1 (hex bytes) | 31 |
| Encoding: ISO8859_2 (hex bytes) | 31 |
| Encoding: ISO8859_3 (hex bytes) | 31 |
| Encoding: ISO8859_4 (hex bytes) | 31 |
| Encoding: ISO8859_5 (hex bytes) | 31 |
| Encoding: ISO8859_6 (hex bytes) | 31 |
| Encoding: ISO8859_7 (hex bytes) | 31 |
| Encoding: ISO8859_8 (hex bytes) | 31 |
| Encoding: ISO8859_9 (hex bytes) | 31 |
| Encoding: ISO8859_10 (hex bytes) | 31 |
| Encoding: ISO8859_11 (hex bytes) | 31 |
| Encoding: ISO8859_13 (hex bytes) | 31 |
| Encoding: ISO8859_14 (hex bytes) | 31 |
| Encoding: ISO8859_15 (hex bytes) | 31 |
| Encoding: ISO8859_16 (hex bytes) | 31 |
| Encoding: JOHAB (hex bytes) | 31 |
| Encoding: KOI8_R (hex bytes) | 31 |
| Encoding: KOI8_T (hex bytes) | 31 |
| Encoding: KOI8_U (hex bytes) | 31 |
| Encoding: KZ1048 (hex bytes) | 31 |
| Encoding: MAC_CYRILLIC (hex bytes) | 31 |
| Encoding: MAC_GREEK (hex bytes) | 31 |
| Encoding: MAC_ICELAND (hex bytes) | 31 |
| Encoding: MAC_LATIN2 (hex bytes) | 31 |
| Encoding: MAC_ROMAN (hex bytes) | 31 |
| Encoding: MAC_TURKISH (hex bytes) | 31 |
| Encoding: PTCP154 (hex bytes) | 31 |
| Encoding: SHIFT_JIS (hex bytes) | 31 |
| Encoding: SHIFT_JIS_2004 (hex bytes) | 31 |
| Encoding: SHIFT_JISX0213 (hex bytes) | 31 |
| Encoding: CP037 (hex bytes) | F1 |
| Encoding: CP1025 (hex bytes) | F1 |
| Encoding: CP1047 (hex bytes) | F1 |
| Encoding: CP1097 (hex bytes) | F1 |
| Encoding: CP1112 (hex bytes) | F1 |
| Encoding: CP1122 (hex bytes) | F1 |
| Encoding: CP1123 (hex bytes) | F1 |
| Encoding: CP1140 (hex bytes) | F1 |
| Encoding: CP1141 (hex bytes) | F1 |
| Encoding: CP1142 (hex bytes) | F1 |
| Encoding: CP1143 (hex bytes) | F1 |
| Encoding: CP1144 (hex bytes) | F1 |
| Encoding: CP1145 (hex bytes) | F1 |
| Encoding: CP1146 (hex bytes) | F1 |
| Encoding: CP1147 (hex bytes) | F1 |
| Encoding: CP1148 (hex bytes) | F1 |
| Encoding: CP1148MS (hex bytes) | F1 |
| Encoding: CP1149 (hex bytes) | F1 |
| Encoding: CP273 (hex bytes) | F1 |
| Encoding: CP277 (hex bytes) | F1 |
| Encoding: CP278 (hex bytes) | F1 |
| Encoding: CP280 (hex bytes) | F1 |
| Encoding: CP284 (hex bytes) | F1 |
| Encoding: CP285 (hex bytes) | F1 |
| Encoding: CP290 (hex bytes) | F1 |
| Encoding: CP297 (hex bytes) | F1 |
| Encoding: CP420 (hex bytes) | F1 |
| Encoding: CP424 (hex bytes) | F1 |
| Encoding: CP500 (hex bytes) | F1 |
| Encoding: CP500MS (hex bytes) | F1 |
| Encoding: CP833 (hex bytes) | F1 |
| Encoding: CP838 (hex bytes) | F1 |
| Encoding: CP870 (hex bytes) | F1 |
| Encoding: CP871 (hex bytes) | F1 |
| Encoding: CP875 (hex bytes) | F1 |
| AGL: Latin-1 | one |
| AGL: Latin-2 | one |
| AGL: Latin-3 | one |
| AGL: Latin-4 | one |
| AGL: Latin-5 | one |
| Adobe Glyph List | one |
| digraph | 1 |
Related Characters
- Superscript One
- Vulgar Fraction One Quarter
- Vulgar Fraction One Half
- Subscript One
- Vulgar Fraction One Seventh
- Vulgar Fraction One Ninth
- Vulgar Fraction One Tenth
- Vulgar Fraction One Third
- Vulgar Fraction One Fifth
- Vulgar Fraction One Sixth
- Vulgar Fraction One Eighth
- Fraction Numerator One
- Circled Digit One
- Circled Number Ten
- Circled Number Eleven
- Circled Number Twelve
- Circled Number Thirteen
- Circled Number Fourteen
- Circled Number Fifteen
- Circled Number Sixteen
- Circled Number Seventeen
- Circled Number Eighteen
- Circled Number Nineteen
- Parenthesized Digit One
- Parenthesized Number Ten
- Parenthesized Number Eleven
- Parenthesized Number Twelve
- Parenthesized Number Thirteen
- Parenthesized Number Fourteen
- Parenthesized Number Fifteen
- Parenthesized Number Sixteen
- Parenthesized Number Seventeen
- Parenthesized Number Eighteen
- Parenthesized Number Nineteen
- Digit One Full Stop
- Number Ten Full Stop
- Number Eleven Full Stop
- Number Twelve Full Stop
- Number Thirteen Full Stop
- Number Fourteen Full Stop
- Number Fifteen Full Stop
- Number Sixteen Full Stop
- Number Seventeen Full Stop
- Number Eighteen Full Stop
- Number Nineteen Full Stop
- Circled Number Twenty One
- Circled Number Thirty One
- Circled Number Forty One
- Ideographic Telegraph Symbol for January
- Ideographic Telegraph Symbol for October
- Ideographic Telegraph Symbol for November
- Ideographic Telegraph Symbol for December
- Ideographic Telegraph Symbol for Hour One
- Ideographic Telegraph Symbol for Hour Ten
- Ideographic Telegraph Symbol for Hour Eleven
- Ideographic Telegraph Symbol for Hour Twelve
- Ideographic Telegraph Symbol for Hour Thirteen
- Ideographic Telegraph Symbol for Hour Fourteen
- Ideographic Telegraph Symbol for Hour Fifteen
- Ideographic Telegraph Symbol for Hour Sixteen
- Ideographic Telegraph Symbol for Hour Seventeen
- Ideographic Telegraph Symbol for Hour Eighteen
- Ideographic Telegraph Symbol for Hour Nineteen
- Ideographic Telegraph Symbol for Hour Twenty-One
- Ideographic Telegraph Symbol for Day One
- Ideographic Telegraph Symbol for Day Ten
- Ideographic Telegraph Symbol for Day Eleven
- Ideographic Telegraph Symbol for Day Twelve
- Ideographic Telegraph Symbol for Day Thirteen
- Ideographic Telegraph Symbol for Day Fourteen
- Ideographic Telegraph Symbol for Day Fifteen
- Ideographic Telegraph Symbol for Day Sixteen
- Ideographic Telegraph Symbol for Day Seventeen
- Ideographic Telegraph Symbol for Day Eighteen
- Ideographic Telegraph Symbol for Day Nineteen
- Ideographic Telegraph Symbol for Day Twenty-One
- Ideographic Telegraph Symbol for Day Thirty-One
- Fullwidth Digit One
- Outlined Digit One
- Mathematical Bold Digit One
- Mathematical Double-Struck Digit One
- Mathematical Sans-Serif Digit One
- Mathematical Sans-Serif Bold Digit One
- Mathematical Monospace Digit One
- Digit One Comma
- Segmented Digit One
Confusables
Elsewhere
Complete Record
| Property | Value |
|---|---|
| 1.1 (1993) | |
| DIGIT ONE | |
| — | |
| Basic Latin | |
| Decimal Number | |
| Common | |
| European Number | |
| Not Reordered | |
| none | |
| Digit One | |
| ✘ | |
| Digit One | |
| Digit One | |
| ✘ | |
| Digit One | |
| Digit One | |
| Digit One | |
| Digit One | |
| Digit One | |
| ✔ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✔ | |
| ✘ | |
| ✘ | |
| ✔ | |
| ✘ | |
| ✘ | |
| Digit One | |
| Any | |
| ✔ | |
| ✘ | |
| ✘ | |
| ✔ | |
| ✘ | |
| ✔ | |
| ✘ | |
| ✘ | |
| ✘ | |
| 0 | |
| 0 | |
| 0 | |
| ✘ | |
| None | |
| — | |
| NA | |
| Number | |
| — | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| Yes | |
| Yes | |
| Digit One | |
| Yes | |
| Digit One | |
| Yes | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| Numeric | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| Numeric | |
| ✘ | |
| ✔ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| ✘ | |
| Digit One | |
| None | |
| narrow | |
| Not Applicable | |
| — | |
| No_Joining_Group | |
| Non Joining | |
| Numeric | |
| decimal | |
| 1 | |
| Digit One | |
| R |