Numeric Value: 45

The folowing table expresses '45' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.

BaseDR6DR5DR4DR3DR2DR1
2101101  100 1
3  1200 101
4   231123
5   140101
6   113 5
7    63,123
8    55,123
9    505
10    459
11    415
12    39,101
13    369
14    336
15    303
16    2DF

Math World

Factors: 32 * 5

45 is in the Pythagorean Triples: (45, 1012, 1013), (28, 45, 53).

45 is the sum of the counting numbers from 1 to 9 (See 'The Sum/Product of the First N Counting Numbers').

Physical World

45 is the atomic weight of Rhodium (Rh).