The folowing table expresses '549' 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 | 1000100101 | 100 | 1 | |||||||
| 3 | 202100 | 12,10 | 1 | |||||||
| 4 | 20211 | 12 | 3 | |||||||
| 5 | 4144 | 23,10 | 1 | |||||||
| 6 | 2313 | 13 | 4 | |||||||
| 7 | 1413 | 12 | 3 | |||||||
| 8 | 1045 | 12 | 3 | |||||||
| 9 | 670 | 14 | 5 | |||||||
| 10 | 549 | 18 | 9 | |||||||
| 11 | 45A | 18 | 9 | |||||||
| 12 | 399 | 19 | A | |||||||
| 13 | 333 | 9 | ||||||||
| 14 | 2B3 | 12 | 3 | |||||||
| 15 | 269 | 12 | 3 | |||||||
| 16 | 225 | 9 |
Factors: 32 * 61
549 is in the Pythagorean Triple: (549, 1820, 1901).