Numeric Value: 391

The folowing table expresses '391' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.

BaseDR9DR8DR7DR6DR5DR4DR3DR2DR1
2110000111     101101
3   112111   21,101
4    12013  13,101
5     3031 123
6     1451 15,101
7     1066 16,101
8      607156
9      474167
10      391134
11      326101
12      287156
13      241 7
14      1DD1D,101
15      1B1 D
16      187101

Math World

Factors: 17 * 23

391 is in the Pythagorean Triple: (120, 391, 409).