Compare 681240 vs 681251
| Property | 681240 | 681251 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 5 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 23 × 31 × 51 × 71 × 8111 | 6812511 |
| Prime factorization | 2 × 2 × 2 × 3 × 5 × 7 × 811 | 681251 |
| Divisors count | 64 | 2 |
| Divisors | 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 811, 840, 1622, 2433, 3244, 4055, 4866, 5677, 6488, 8110, 9732, 11354, 12165, 16220, 17031, 19464, 22708, 24330, 28385, 32440, 34062, 45416, 48660, 56770, 68124, 85155, 97320, 113540, 136248, 170310, 227080, 340620, 681240 | 1, 681251 |
| Number of properties | 0 | 7 |
| Additive primes | 21512th | |
| Chen primes | 21540th | |
| Primes | 55157th | |
| Prime quadruplets (1st member) | 132nd | |
| Prime triplets (1st member) | 2164th | |
| Sexy primes (1st member) | 11864th | |
| Twin primes (1st member) | 5944th | |
| Roman numberals | ||
| Base 2 | 101001100101000110002 | 101001100101001000112 |
| Base 3 | 10211211110103 | 10211211111123 |
| Base 4 | 22121101204 | 22121102034 |
| Base 5 | 1332444305 | 1333000015 |
| Base 6 | 223335206 | 223335356 |
| Base 7 | 55350607 | 55351047 |
| Base 8 | 24624308 | 24624438 |
| Base 9 | 12474339 | 12474459 |
| Base 10 | 68124010 | 68125110 |
| Base 11 | 42590a11 | 42591a11 |
| Base 12 | 28a2a012 | 28a2ab12 |
| Base 13 | 1ab10113 | 1ab10c13 |
| Base 14 | 13a3a014 | 13a3ab14 |
| Base 15 | d6cb015 | d6cbb15 |
| Base 16 | a651816 | a652316 |