π is the Unicode emoji DRAGON, code point U+1F409 (decimal 128009) in the Miscellaneous Symbols and Pictographs block, added in Unicode 6.0. In HTML write 🐉, and in UTF-8 it is the 4 bytes F0 9F 90 89.
Codes
| Where | How to write it |
|---|---|
| Code point | U+1F409 |
| Decimal | 128009 |
| UTF-8 bytes | F0 9F 90 89 |
| UTF-16 (big-endian) | D83D DC09 |
| UTF-32 | 0001F409 |
| HTML decimal | 🐉 |
| HTML hex | 🐉 |
| CSS | \1F409 |
| JavaScript | \u{1F409} or \uD83D\uDC09 |
| JSON | \uD83D\uDC09 |
| Python | \U0001F409 |
| Python by name | \N{DRAGON} |
| Java, C# | \uD83D\uDC09 |
| Rust, Swift | \u{1F409} |
| Go, C, C++ | \U0001F409 |
| URL (percent-encoded) | %F0%9F%90%89 |
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 | DRAGON |
| Emoji name | dragon |
| Code point | U+1F409 (decimal 128009) |
| Block | Miscellaneous Symbols and Pictographs (U+1F300βU+1F5FF) |
| General category | So: Other symbol |
| Script | Common |
| Bidirectional class | ON: Other neutral |
| Mirrored in right-to-left text | No |
| First in Unicode version | 6.0 |
Nearby in Miscellaneous Symbols and Pictographs
- π U+1F401 Mouse
- π U+1F402 Ox
- π U+1F403 Water buffalo
- π U+1F404 Cow
- π U+1F405 Tiger
- π U+1F406 Leopard
- π U+1F407 Rabbit
- π U+1F408 Cat
- π U+1F40A Crocodile
- π U+1F40B Whale
- π U+1F40C Snail
- π U+1F40D Snake
- π U+1F40E Horse
- π U+1F40F Ram
- π U+1F410 Goat
- π U+1F411 Ewe
All 768 characters: Miscellaneous Symbols and Pictographs.
Official reference
Questions people ask
- What is the HTML code for π?
- Use 🐉 (decimal) or 🐉 (hex).
- What is the UTF-8 encoding of U+1F409?
- F0 9F 90 89 (hex), 4 bytes. In a URL it is %F0%9F%90%89.
- How do I write U+1F409 in JavaScript or Python?
- JavaScript: \u{1F409} or \uD83D\uDC09. Python: \U0001F409.
Source
Unicode Character Database 18.0.0 (Unicode License v3) and the Unicode emoji test data; 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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