The folowing table expresses '390' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR9 | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|---|
| 2 | 110000110 | 100 | 1 | ||||||
| 3 | 112110 | 20 | 2 | ||||||
| 4 | 12012 | 12 | 3 | ||||||
| 5 | 3030 | 11 | 2 | ||||||
| 6 | 1450 | 14 | 5 | ||||||
| 7 | 1065 | 15 | 6 | ||||||
| 8 | 606 | 14 | 5 | ||||||
| 9 | 473 | 15 | 6 | ||||||
| 10 | 390 | 12 | 3 | ||||||
| 11 | 325 | A | |||||||
| 12 | 286 | 14 | 5 | ||||||
| 13 | 240 | 6 | |||||||
| 14 | 1DC | 1C | D | ||||||
| 15 | 1B0 | C | |||||||
| 16 | 186 | F |
Factors: 2 * 3 * 5 * 13