Compare 642045 vs 642055
| Property | 642045 | 642055 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 31 × 51 × 231 × 18611 | 51 × 1284111 |
| Prime factorization | 3 × 5 × 23 × 1861 | 5 × 128411 |
| Divisors count | 16 | 4 |
| Divisors | 1, 3, 5, 15, 23, 69, 115, 345, 1861, 5583, 9305, 27915, 42803, 128409, 214015, 642045 | 1, 5, 128411, 642055 |
| Number of properties | 0 | 1 |
| Semiprimes | 137563rd | |
| Roman numberals | ||
| Base 2 | 100111001011111111012 | 100111001100000001112 |
| Base 3 | 10121212011103 | 10121212012113 |
| Base 4 | 21302333314 | 21303000134 |
| Base 5 | 1310211405 | 1310212105 |
| Base 6 | 214322336 | 214322516 |
| Base 7 | 53125657 | 53126117 |
| Base 8 | 23457758 | 23460078 |
| Base 9 | 11776439 | 11776549 |
| Base 10 | 64204510 | 64205510 |
| Base 11 | 3a941811 | 3a942711 |
| Base 12 | 26b67912 | 26b68712 |
| Base 13 | 19631113 | 19631b13 |
| Base 14 | 129da514 | 129db114 |
| Base 15 | ca38015 | ca38a15 |
| Base 16 | 9cbfd16 | 9cc0716 |