| HTML Entity (dec) | ⁉ |
| HTML Entity (hex) | ⁉ |
| UTF-8 (hex) | 0xe28189 / 0xe2 0x81 0x89 (3 bytes) |
| UTF-8 (dec) | 226, 129, 137 (3 bytes) |
| UTF-16-BE (hex) | 0x2049 / 0x20 0x49 (2 bytes) |
| UTF-16-BE (dec) | 32, 73 (2 bytes) |
| UTF-32-BE (hex) | 0x2049 / 0x00 0x00 0x20 0x49 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 32, 73 (4 bytes) |
| C/C++/Java source code | "\u2049" |
| Python source code | "\u2049" |