Numeric Value: 20
The folowing table expresses '20' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|
| 2 | 10100 | 10 | 1 | ||
| 3 | 202 | 11 | 2 | ||
| 4 | 110 | 2 | |||
| 5 | 40 | 4 | |||
| 6 | 32 | 5 | |||
| 7 | 26,11 | 2 | |||
| 8 | 24 | 6 | |||
| 9 | 22 | 4 | |||
| 10 | 20 | 2 | |||
| 11 | 19 | A | |||
| 12 | 18 | 9 | |||
| 13 | 17 | 8 | |||
| 14 | 16 | 7 | |||
| 15 | 15 | 6 | |||
| 16 | 14 | 5 |
Math World
Factors: 22 * 5
20 is in the Pythagorean Triples: (20, 99, 101), (20, 21, 29).
20 is the number of vertices in a Dodecahedron.
20 is the number of faces in a Icosahedron.
A 'Icosagon' is a 'regular polygon' with 20 sides.
Physical World
20 is the atomic weight of Calcium (Ca).
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