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.

BaseDR8DR7DR6DR5DR4DR3DR2DR1
211100111    110101
3   22120  21,101
4    3213 213
5    1411 123
6    1023 101
7     450123
8     347167
9     276167
10     231 6
11     1A0101
12     173 B
13     14A123
14     127 A
15     106 7
16      E7,156

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').