| Decimal | 9 |
| Binary | 1001 |
| Hexadecimal | 0x9 |
| Roman | IX |
| Square root of | 81 |
| Factors | 3 3 |
| The number 9 | is square of 3 |
| English | nine |
| Wikipedia article about 9 | Article about 9 |
| ASCII code for | Horizontal Tab |
| The number 9 is a power of | 3 |
| random from 0 to 6 | Show |
| random from 0 to 10 | Show |
| random from 0 to 100 | Show |
| random from 0 to 1000 | Show |