Compare 2551 vs 2556
| Property | 2551 | 2556 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 5 |
| Prime factorization | 25511 | 22 × 32 × 711 |
| Prime factorization | 2551 | 2 × 2 × 3 × 3 × 71 |
| Divisors count | 2 | 18 |
| Divisors | 1, 2551 | 1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556 |
| Number of properties | 4 | 0 |
| Additive primes | 195th | |
| Primes | 374th | |
| Sexy primes (1st member) | 153rd | |
| Twin primes (2nd member) | 73rd | |
| Roman numberals | MMDLI | MMDLVI |
| Base 2 | 1001111101112 | 1001111111002 |
| Base 3 | 101111113 | 101112003 |
| Base 4 | 2133134 | 2133304 |
| Base 5 | 402015 | 402115 |
| Base 6 | 154516 | 155006 |
| Base 7 | 103037 | 103117 |
| Base 8 | 47678 | 47748 |
| Base 9 | 34449 | 34509 |
| Base 10 | 255110 | 255610 |
| Base 11 | 1a0a11 | 1a1411 |
| Base 12 | 158712 | 159012 |
| Base 13 | 121313 | 121813 |
| Base 14 | d0314 | d0814 |
| Base 15 | b5115 | b5615 |
| Base 16 | 9f716 | 9fc16 |