Compare 2561 vs 2565
| Property | 2561 | 2565 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 5 |
| Prime factorization | 131 × 1971 | 33 × 51 × 191 |
| Prime factorization | 13 × 197 | 3 × 3 × 3 × 5 × 19 |
| Divisors count | 4 | 16 |
| Divisors | 1, 13, 197, 2561 | 1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565 |
| Number of properties | 1 | 0 |
| Semiprimes | 724th | |
| Roman numberals | MMDLXI | MMDLXV |
| Base 2 | 1010000000012 | 1010000001012 |
| Base 3 | 101112123 | 101120003 |
| Base 4 | 2200014 | 2200114 |
| Base 5 | 402215 | 402305 |
| Base 6 | 155056 | 155136 |
| Base 7 | 103167 | 103237 |
| Base 8 | 50018 | 50058 |
| Base 9 | 34559 | 34609 |
| Base 10 | 256110 | 256510 |
| Base 11 | 1a1911 | 1a2211 |
| Base 12 | 159512 | 159912 |
| Base 13 | 122013 | 122413 |
| Base 14 | d0d14 | d1314 |
| Base 15 | b5b15 | b6015 |
| Base 16 | a0116 | a0516 |