The folowing table expresses '805' 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 | 1100100101 | 101 | 10 | 1 | ||||||
| 3 | 1002211 | 21,10 | 1 | |||||||
| 4 | 30211 | 13,10 | 1 | |||||||
| 5 | 11210 | 10 | 1 | |||||||
| 6 | 3421 | 14 | 5 | |||||||
| 7 | 2230 | 10 | 1 | |||||||
| 8 | 1445 | 16 | 7 | |||||||
| 9 | 1084 | 14 | 5 | |||||||
| 10 | 805 | 13 | 4 | |||||||
| 11 | 672 | 14 | 5 | |||||||
| 12 | 571 | 11 | 2 | |||||||
| 13 | 49C | 1C,10 | 1 | |||||||
| 14 | 417 | C | ||||||||
| 15 | 38A | 16 | 7 | |||||||
| 16 | 325 | A |
Factors: 5 * 7 * 23
805 is in the Pythagorean Triple: (348, 805, 877).