The folowing table expresses '78' 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 | 1001110 | 100 | 1 | ||||
| 3 | 2220 | 20 | 2 | ||||
| 4 | 1032 | 12 | 3 | ||||
| 5 | 303 | 11 | 2 | ||||
| 6 | 210 | 3 | |||||
| 7 | 141 | 6 | |||||
| 8 | 116 | 10 | 1 | ||||
| 9 | 86,15 | 6 | |||||
| 10 | 78,15 | 6 | |||||
| 11 | 71 | 8 | |||||
| 12 | 66,10 | 1 | |||||
| 13 | 60 | 6 | |||||
| 14 | 58 | D | |||||
| 15 | 53 | 8 | |||||
| 16 | 4E,12 | 3 |
Factors: 2 * 3 * 13
78 is the sum of the counting numbers from 1 to 12 (See 'The Sum/Product of the First N Counting Numbers').
78 is the atomic weight of Platinum (Pt).