The folowing table expresses '18' 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 | 10010 | 10 | 1 | ||
3 | 200 | 2 | |||
4 | 102 | 3 | |||
5 | 33,11 | 2 | |||
6 | 30 | 3 | |||
7 | 24 | 6 | |||
8 | 22 | 4 | |||
9 | 20 | 2 | |||
10 | 18 | 9 | |||
11 | 17 | 8 | |||
12 | 16 | 7 | |||
13 | 15 | 6 | |||
14 | 14 | 5 | |||
15 | 13 | 4 | |||
16 | 12 | 3 |
Factors: 2 * 32
A 'Octadecagon' is a 'regular polygon' with 18 sides.
18 is the atomic weight of Argon (Ar).