Numeric Value: 640

The folowing table expresses '640' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.

BaseDR10DR9DR8DR7DR6DR5DR4DR3DR2DR1
21010000000       101
3    212201   22,112
4     22000  101
5     10030   4
6      2544 235
7      1603 134
8      1200  3
9       781178
10       640101
11       532 A
12       454112
13       3A3134
14       33A123
15       2CA19A
16       280 A

Math World

Factors: 27 * 5