Numeric Value: 231
The folowing table expresses '231' 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 | 11100111 | 110 | 10 | 1 | ||||
| 3 | 22120 | 21,10 | 1 | |||||
| 4 | 3213 | 21 | 3 | |||||
| 5 | 1411 | 12 | 3 | |||||
| 6 | 1023 | 10 | 1 | |||||
| 7 | 450 | 12 | 3 | |||||
| 8 | 347 | 16 | 7 | |||||
| 9 | 276 | 16 | 7 | |||||
| 10 | 231 | 6 | ||||||
| 11 | 1A0 | 10 | 1 | |||||
| 12 | 173 | B | ||||||
| 13 | 14A | 12 | 3 | |||||
| 14 | 127 | A | ||||||
| 15 | 106 | 7 | ||||||
| 16 | E7,15 | 6 |
Math World
Factors: 3 * 7 * 11
231 is in the Pythagorean Triples: (160, 231, 281), (231, 520, 569), (231, 2960, 2969).
231 is the sum of the counting numbers from 1 to 21 (See 'The Sum/Product of the First N Counting Numbers').
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