Compare 640256 vs 640261
| Property | 640256 | 640261 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 10 | 1 |
| Prime factorization | 28 × 411 × 611 | 6402611 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 41 × 61 | 640261 |
| Divisors count | 36 | 2 |
| Divisors | 1, 2, 4, 8, 16, 32, 41, 61, 64, 82, 122, 128, 164, 244, 256, 328, 488, 656, 976, 1312, 1952, 2501, 2624, 3904, 5002, 5248, 7808, 10004, 10496, 15616, 20008, 40016, 80032, 160064, 320128, 640256 | 1, 640261 |
| Number of properties | 0 | 5 |
| Additive primes | 20363rd | |
| Lucky primes | 5980th | |
| Primes | 52100th | |
| Sexy primes (1st member) | 11288th | |
| Twin primes (2nd member) | 5636th | |
| Roman numberals | ||
| Base 2 | 100111000101000000002 | 100111000101000001012 |
| Base 3 | 10121120210123 | 10121120211013 |
| Base 4 | 21301100004 | 21301100114 |
| Base 5 | 1304420115 | 1304420215 |
| Base 6 | 214200526 | 214201016 |
| Base 7 | 53044317 | 53044367 |
| Base 8 | 23424008 | 23424058 |
| Base 9 | 11752359 | 11752419 |
| Base 10 | 64025610 | 64026110 |
| Base 11 | 3a804111 | 3a804611 |
| Base 12 | 26a62812 | 26a63112 |
| Base 13 | 19556613 | 19556b13 |
| Base 14 | 12948814 | 12948d14 |
| Base 15 | c9a8b15 | c9a9115 |
| Base 16 | 9c50016 | 9c50516 |