The folowing table expresses '65' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|
| 2 | 1000001 | 10 | 1 | ||||
| 3 | 2102 | 12,10 | 1 | ||||
| 4 | 1001 | 2 | |||||
| 5 | 230 | 10 | 1 | ||||
| 6 | 145 | 14 | 5 | ||||
| 7 | 122 | 5 | |||||
| 8 | 101 | 2 | |||||
| 9 | 72,10 | 1 | |||||
| 10 | 65,11 | 2 | |||||
| 11 | 5A,14 | 5 | |||||
| 12 | 55 | A | |||||
| 13 | 50 | 5 | |||||
| 14 | 49 | D | |||||
| 15 | 45 | 9 | |||||
| 16 | 41 | 5 |
Factors: 5 * 13
65 is in the Pythagorean Triples: (16, 63, 65), (33, 56, 65), (65, 72, 97), (65, 2112, 2113).
65 is the atomic weight of Terbium (Tb).