Compare 1531 vs 2789
| Property | 1531 | 2789 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 15311 | 27891 |
| Prime factorization | 1531 | 2789 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1531 | 1, 2789 |
| Number of properties | 5 | 6 |
| Centered decagonal primes | 13th | |
| Chen primes | 242nd | |
| Isolated primes | 143rd | |
| Long primes | 91st | 164th |
| Primes | 242nd | 405th |
| Pythagorean primes | 199th | |
| Twin primes (1st member) | 79th | |
| Ulam primes | 22nd | 30th |
| Roman numberals | MDXXXI | MMDCCLXXXIX |
| Base 2 | 101111110112 | 1010111001012 |
| Base 3 | 20022013 | 102110223 |
| Base 4 | 1133234 | 2232114 |
| Base 5 | 221115 | 421245 |
| Base 6 | 110316 | 205256 |
| Base 7 | 43157 | 110637 |
| Base 8 | 27738 | 53458 |
| Base 9 | 20819 | 37389 |
| Base 10 | 153110 | 278910 |
| Base 11 | 117211 | 210611 |
| Base 12 | a7712 | 174512 |
| Base 13 | 90a13 | 136713 |
| Base 14 | 7b514 | 103314 |
| Base 15 | 6c115 | c5e15 |
| Base 16 | 5fb16 | ae516 |