The folowing table expresses '1665' 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 | 11010000001 | 100 | 1 | ||||||||
| 3 | 2021200 | 21,10 | 1 | ||||||||
| 4 | 122001 | 12 | 3 | ||||||||
| 5 | 23130 | 14,10 | 1 | ||||||||
| 6 | 11413 | 14 | 5 | ||||||||
| 7 | 4566 | 30 | 3 | ||||||||
| 8 | 3201 | 6 | |||||||||
| 9 | 2250 | 10 | 1 | ||||||||
| 10 | 1665 | 18 | 9 | ||||||||
| 11 | 1284 | 14 | 5 | ||||||||
| 12 | B69 | 22 | 4 | ||||||||
| 13 | 9B1 | 18 | 9 | ||||||||
| 14 | 86D | 1D,10 | 1 | ||||||||
| 15 | 760 | D | |||||||||
| 16 | 681 | F |
Factors: 32 * 5 * 37