Numeric Value: 19

The folowing table expresses '19' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.

BaseDR5DR4DR3DR2DR1
210011  11,101
3  201101
4  103101
5   34,123
6   314
7   25,101
8   235
9   213
10   19,101
11   189
12   178
13   167
14   156
15   145
16   134

Math World

Factors: Prime

19 is in the Pythagorean Triple: (19, 180, 181).

A 'Enneadecagon' is a 'regular polygon' with 19 sides.

Physical World

19 is the atomic weight of Potassium (K).