The folowing table expresses '140' in various number bases. 'DRx' shows the result of 'digit reducing' resulting in an X-digit long number.
| Base | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
|---|---|---|---|---|---|---|---|---|
| 2 | 10001100 | 11,10 | 1 | |||||
| 3 | 12012 | 20 | 2 | |||||
| 4 | 2030 | 11 | 2 | |||||
| 5 | 1030 | 4 | ||||||
| 6 | 352 | 14 | 5 | |||||
| 7 | 260 | 11 | 2 | |||||
| 8 | 214 | 7 | ||||||
| 9 | 165 | 13 | 4 | |||||
| 10 | 140 | 5 | ||||||
| 11 | 118 | A | ||||||
| 12 | B8,17 | 8 | ||||||
| 13 | AA,17 | 8 | ||||||
| 14 | A0 | A | ||||||
| 15 | 95 | E | ||||||
| 16 | 8C,14 | 5 |
Factors: 22 * 5 * 7
140 is in the Pythagorean Triples: (140, 1221, 1229), (51, 140, 149), (140, 171, 221).
140 is the interior angle of a 'Nonagon (or Enneagon)' (see 'regular polygons').