The folowing table expresses '165' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|
| 2 | 10100101 | 100 | 1 | |||||
| 3 | 20010 | 10 | 1 | |||||
| 4 | 2211 | 12 | 3 | |||||
| 5 | 1130 | 10 | 1 | |||||
| 6 | 433 | 14 | 5 | |||||
| 7 | 324 | 12 | 3 | |||||
| 8 | 245 | 13 | 4 | |||||
| 9 | 203 | 5 | ||||||
| 10 | 165 | 12 | 3 | |||||
| 11 | 140 | 5 | ||||||
| 12 | 119 | B | ||||||
| 13 | C9,18 | 9 | ||||||
| 14 | BB,18 | 9 | ||||||
| 15 | B0 | B | ||||||
| 16 | A5 | F |
Factors: 3 * 5 * 11
165 is in the Pythagorean Triples: (52, 165, 173), (165, 532, 557), (165, 1508, 1517).