The folowing table expresses '1289' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR11 | DR10 | DR9 | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 10100001001 | 100 | 1 | ||||||||
| 3 | 1202202 | 100 | 1 | ||||||||
| 4 | 110021 | 11 | 2 | ||||||||
| 5 | 20124 | 14,10 | 1 | ||||||||
| 6 | 5545 | 31 | 4 | ||||||||
| 7 | 3521 | 14 | 5 | ||||||||
| 8 | 2411 | 10 | 1 | ||||||||
| 9 | 1682 | 18,10 | 1 | ||||||||
| 10 | 1289 | 20 | 2 | ||||||||
| 11 | A72 | 18 | 9 | ||||||||
| 12 | 8B5 | 20 | 2 | ||||||||
| 13 | 782 | 14 | 5 | ||||||||
| 14 | 681 | 11 | 2 | ||||||||
| 15 | 5AE | 1E,10 | 1 | ||||||||
| 16 | 509 | E |
Factors: Prime