π is the Unicode character CUNEIFORM NUMERIC SIGN SIX N01 FLAT, code point U+12651 (decimal 75345) in the Archaic Cuneiform Numerals block, added in Unicode 18.0. In HTML write 𒙑, and in UTF-8 it is the 4 bytes F0 92 99 91.
Codes
| Where | How to write it |
|---|---|
| Code point | U+12651 |
| Decimal | 75345 |
| UTF-8 bytes | F0 92 99 91 |
| UTF-16 (big-endian) | D809 DE51 |
| UTF-32 | 00012651 |
| HTML decimal | 𒙑 |
| HTML hex | 𒙑 |
| CSS | \12651 |
| JavaScript | \u{12651} or \uD809\uDE51 |
| JSON | \uD809\uDE51 |
| Python | \U00012651 |
| Python by name | \N{CUNEIFORM NUMERIC SIGN SIX N01 FLAT} |
| Java, C# | \uD809\uDE51 |
| Rust, Swift | \u{12651} |
| Go, C, C++ | \U00012651 |
| URL (percent-encoded) | %F0%92%99%91 |
JavaScript and JSON strings store text as UTF-16, so this character takes two code units (a surrogate pair) and "π".length is 2. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | CUNEIFORM NUMERIC SIGN SIX N01 FLAT |
| Code point | U+12651 (decimal 75345) |
| Block | Archaic Cuneiform Numerals (U+12550βU+1268F) |
| General category | Nl: Letter number |
| Script | Cuneiform |
| Bidirectional class | L: Left-to-right |
| Numeric value | 6 |
| Mirrored in right-to-left text | No |
| First in Unicode version | 18.0 |
Nearby in Archaic Cuneiform Numerals
- π U+12649 Cuneiform Numeric Sign One N07b
- π U+1264A Cuneiform Numeric Sign Two N07b
- π U+1264B Cuneiform Numeric Sign Three N07b
- π U+1264C Cuneiform Numeric Sign One N01 Flat
- π U+1264D Cuneiform Numeric Sign Two N01 Flat
- π U+1264E Cuneiform Numeric Sign Three N01 Flat
- π U+1264F Cuneiform Numeric Sign Four N01 Flat
- π U+12650 Cuneiform Numeric Sign Five N01 Flat
- π U+12652 Cuneiform Numeric Sign Seven N01 Flat
- π U+12653 Cuneiform Numeric Sign Eight N01 Flat
- π U+12654 Cuneiform Numeric Sign Nine N01 Flat
- π U+12655 Cuneiform Numeric Sign One N08 Flat
- π U+12656 Cuneiform Numeric Sign One N14 Flat
- π U+12657 Cuneiform Numeric Sign Two N14 Flat
- π U+12658 Cuneiform Numeric Sign Three N14 Flat
- π U+12659 Cuneiform Numeric Sign Four N14 Flat
All 311 characters: Archaic Cuneiform Numerals.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 𒙑 (decimal) or 𒙑 (hex).
- What is the UTF-8 encoding of U+12651?
- F0 92 99 91 (hex), 4 bytes. In a URL it is %F0%92%99%91.
- How do I write U+12651 in JavaScript or Python?
- JavaScript: \u{12651} or \uD809\uDE51. Python: \U00012651.
Source
Unicode Character Database 18.0.0 (Unicode License v3); HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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