This character is a Other Letter and is mainly used in the Han script. The Unihan Database defines it as three. Its Pīnyīn pronunciation is sān. The codepoint has the numeric value 3.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+4E09 offers a line break opportunity at its position, except in some numeric contexts. The glyph can be confused with 2 other glyphs.
The Wikipedia has the following information about this codepoint:
Chinese numerals are words and characters used to denote numbers in written Chinese.
Today, speakers of Chinese languages use three written numeral systems: the system of Arabic numerals used worldwide, and two indigenous systems. The more familiar indigenous system is based on Chinese characters that correspond to numerals in the spoken language. These may be shared with other languages of the Chinese cultural sphere such as Korean, Japanese, and Vietnamese. Most people and institutions in China primarily use the Arabic or mixed Arabic-Chinese systems for convenience, with traditional Chinese numerals used in finance, mainly for writing amounts on cheques, banknotes, some ceremonial occasions, some boxes, and on commercials.
The other indigenous system consists of the Suzhou numerals, or huama, a positional system, the only surviving form of the rod numerals. These were once used by Chinese mathematicians, and later by merchants in Chinese markets, such as those in Hong Kong until the 1990s, but were gradually supplanted by Arabic numerals.
Representations
System
Representation (click value to copy)
Nº
19977
UTF-8
E4 B8 89
UTF-16
4E 09
UTF-32
00 00 4E 09
URL-Quoted
%E4%B8%89
HTML hex reference
三
Wrong windows-1252 Mojibake
三
Encoding: BIG5 (hex bytes)
A4 54
Encoding: BIG5HKSCS (hex bytes)
A4 54
Encoding: CP932 (hex bytes)
8E 4F
Encoding: CP949 (hex bytes)
DF B2
Encoding: CP950 (hex bytes)
A4 54
Encoding: EUC_JP (hex bytes)
BB B0
Encoding: EUC_JIS_2004 (hex bytes)
BB B0
Encoding: EUC_JISX0213 (hex bytes)
BB B0
Encoding: EUC_KR (hex bytes)
DF B2
Encoding: GB2312 (hex bytes)
C8 FD
Encoding: GBK (hex bytes)
C8 FD
Encoding: GB18030 (hex bytes)
C8 FD
Encoding: HZ (hex bytes)
7E 7B 48 7D 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 3B 30 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 3B 30 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 3B 30 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 3B 30 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 3B 30 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 3B 30 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 5F 32 0F
Encoding: JOHAB (hex bytes)
EA B2
Encoding: SHIFT_JIS (hex bytes)
8E 4F
Encoding: SHIFT_JIS_2004 (hex bytes)
8E 4F
Encoding: SHIFT_JISX0213 (hex bytes)
8E 4F
Pīnyīn
sān
RFC 5137
\u'4E09'
Bash and Zsh inside echo -e
\u4E09
C and C++
\u4E09
C#
\u4E09
CSS
\004E09
Excel
=UNICHAR(19977)
Go
\u4E09
JavaScript
\u4E09
Modern JavaScript since ES6
\u{4e09}
JSON
\u4E09
Java
\u4E09
Lua
\u{4E09}
Matlab
char(19977)
Perl
"\x{4E09}"
PHP
\u{4e09}
PostgreSQL
U&'\4E09'
PowerShell
`u{4E09}
Python
\u4E09
Ruby
\u{4e09}
Rust
\u{4e09}
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