The folowing table expresses '99' 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 | 1100011 | 100 | 1 | ||||
| 3 | 10200 | 10 | 1 | ||||
| 4 | 1203 | 12 | 3 | ||||
| 5 | 344 | 21 | 3 | ||||
| 6 | 243 | 13 | 4 | ||||
| 7 | 201 | 3 | |||||
| 8 | 143 | 10 | 1 | ||||
| 9 | 120 | 3 | |||||
| 10 | 99,18 | 9 | |||||
| 11 | 90 | 9 | |||||
| 12 | 83 | B | |||||
| 13 | 78,12 | 3 | |||||
| 14 | 71 | 8 | |||||
| 15 | 69,10 | 1 | |||||
| 16 | 63 | 9 |
Factors: 32 * 11
99 is in the Pythagorean Triple: (20, 99, 101).
99 is the atomic weight of Einsteinium (Es).