Compare 639985 vs 640054
| Property | 639985 | 640054 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 1279971 | 21 × 3200271 |
| Prime factorization | 5 × 127997 | 2 × 320027 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 127997, 639985 | 1, 2, 320027, 640054 |
| Number of properties | 1 | 1 |
| Semiprimes | 137143rd | 137154th |
| Roman numberals | ||
| Base 2 | 100111000011111100012 | 100111000100001101102 |
| Base 3 | 10121112200113 | 10121112222013 |
| Base 4 | 21300333014 | 21301003124 |
| Base 5 | 1304344205 | 1304402045 |
| Base 6 | 214145216 | 214151146 |
| Base 7 | 53035637 | 53040227 |
| Base 8 | 23417618 | 23420668 |
| Base 9 | 11748049 | 11748819 |
| Base 10 | 63998510 | 64005410 |
| Base 11 | 3a791511 | 3a797811 |
| Base 12 | 26a44112 | 26a49a12 |
| Base 13 | 1953b813 | 19543c13 |
| Base 14 | 12933314 | 12938214 |
| Base 15 | c995a15 | c99a415 |
| Base 16 | 9c3f116 | 9c43616 |