The folowing table expresses '511' 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 | 111111111 | 1001 | 10 | 1 | |||||
| 3 | 200221 | 21,10 | 1 | ||||||
| 4 | 13333 | 31,10 | 1 | ||||||
| 5 | 4021 | 12 | 3 | ||||||
| 6 | 2211 | 10 | 1 | ||||||
| 7 | 1330 | 10 | 1 | ||||||
| 8 | 777 | 25 | 7 | ||||||
| 9 | 627 | 16 | 7 | ||||||
| 10 | 511 | 7 | |||||||
| 11 | 425 | 10 | 1 | ||||||
| 12 | 367 | 14 | 5 | ||||||
| 13 | 304 | 7 | |||||||
| 14 | 287 | 13 | 4 | ||||||
| 15 | 241 | 7 | |||||||
| 16 | 1FF | 1F,10 | 1 |
Factors: 7 * 73
511 is in the Pythagorean Triple: (511, 2640, 2689).