The folowing table expresses '909' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR10 | DR9 | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 1110001101 | 110 | 10 | 1 | ||||||
| 3 | 1020200 | 12,10 | 1 | |||||||
| 4 | 32031 | 21 | 3 | |||||||
| 5 | 12114 | 14,10 | 1 | |||||||
| 6 | 4113 | 13 | 4 | |||||||
| 7 | 2436 | 21 | 3 | |||||||
| 8 | 1615 | 15 | 6 | |||||||
| 9 | 1220 | 5 | ||||||||
| 10 | 909 | 18 | 9 | |||||||
| 11 | 757 | 18 | 9 | |||||||
| 12 | 639 | 16 | 7 | |||||||
| 13 | 54C | 18 | 9 | |||||||
| 14 | 48D | 1B | C | |||||||
| 15 | 409 | D | ||||||||
| 16 | 38D | 18 | 9 |
Factors: 32 * 101