Compare 2780 vs 2791
| Property | 2780 | 2791 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 51 × 1391 | 27911 |
| Prime factorization | 2 × 2 × 5 × 139 | 2791 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780 | 1, 2791 |
| Number of properties | 0 | 6 |
| Additive primes | 212th | |
| Cuban primes 1 | 17th | |
| Primes | 406th | |
| Sexy primes (1st member) | 162nd | |
| Sexy prime triplets (1st member) | 60th | |
| Twin primes (2nd member) | 79th | |
| Roman numberals | MMDCCLXXX | MMDCCXCI |
| Base 2 | 1010110111002 | 1010111001112 |
| Base 3 | 102102223 | 102111013 |
| Base 4 | 2231304 | 2232134 |
| Base 5 | 421105 | 421315 |
| Base 6 | 205126 | 205316 |
| Base 7 | 110517 | 110657 |
| Base 8 | 53348 | 53478 |
| Base 9 | 37289 | 37419 |
| Base 10 | 278010 | 279110 |
| Base 11 | 20a811 | 210811 |
| Base 12 | 173812 | 174712 |
| Base 13 | 135b13 | 136913 |
| Base 14 | 102814 | 103514 |
| Base 15 | c5515 | c6115 |
| Base 16 | adc16 | ae716 |