The folowing table expresses '531' 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 | 1000010011 | 100 | 1 | |||||||
| 3 | 201200 | 12,10 | 1 | |||||||
| 4 | 20103 | 12 | 3 | |||||||
| 5 | 4111 | 12 | 3 | |||||||
| 6 | 2243 | 15,10 | 1 | |||||||
| 7 | 1356 | 21 | 3 | |||||||
| 8 | 1023 | 6 | ||||||||
| 9 | 650 | 12 | 3 | |||||||
| 10 | 531 | 9 | ||||||||
| 11 | 443 | 10 | 1 | |||||||
| 12 | 383 | 12 | 3 | |||||||
| 13 | 31B | 12 | 3 | |||||||
| 14 | 29D | 1A | B | |||||||
| 15 | 256 | D | ||||||||
| 16 | 213 | 6 |
Factors: 32 * 59
531 is in the Pythagorean Triple: (531, 1700, 1781).