| HTML Entity (dec) | ⊑ |
| HTML Entity (hex) | ⊑ |
| UTF-8 (hex) | 0xe28a91 / 0xe2 0x8a 0x91 (3 bytes) |
| UTF-8 (dec) | 226, 138, 145 (3 bytes) |
| UTF-16-BE (hex) | 0x2291 / 0x22 0x91 (2 bytes) |
| UTF-16-BE (dec) | 34, 145 (2 bytes) |
| UTF-32-BE (hex) | 0x2291 / 0x00 0x00 0x22 0x91 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 34, 145 (4 bytes) |
| C/C++/Java source code | "\u2291" |
| Python source code | "\u2291" |