| HTML Entity (dec) | ＃ |
| HTML Entity (hex) | ＃ |
| UTF-8 (hex) | 0xefbc83 / 0xef 0xbc 0x83 (3 bytes) |
| UTF-8 (dec) | 239, 188, 131 (3 bytes) |
| UTF-16-BE (hex) | 0xff03 / 0xff 0x03 (2 bytes) |
| UTF-16-BE (dec) | 255, 3 (2 bytes) |
| UTF-32-BE (hex) | 0xff03 / 0x00 0x00 0xff 0x03 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 255, 3 (4 bytes) |
| C/C++/Java source code | "\uff03" |
| Python source code | "\uff03" |