The folowing table expresses '40' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
Base | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
---|---|---|---|---|---|---|
2 | 101000 | 10 | 1 | |||
3 | 1111 | 11 | 2 | |||
4 | 220 | 10 | 1 | |||
5 | 130 | 4 | ||||
6 | 104 | 5 | ||||
7 | 55,13 | 4 | ||||
8 | 50 | 5 | ||||
9 | 44 | 8 | ||||
10 | 40 | 4 | ||||
11 | 37 | A | ||||
12 | 34 | 7 | ||||
13 | 31 | 4 | ||||
14 | 2C,10 | 1 | ||||
15 | 2A | C | ||||
16 | 28 | A |
Factors: 23 * 5
40 is in the Pythagorean Triples: (9, 40, 41), (40, 399, 401).
A 'Tetracontagon' is a 'regular polygon' with 40 sides.
40 is the atomic weight of Zirconium (Zr).