Compare 19891 vs 31013
| Property | 19891 | 31013 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198911 | 310131 |
| Prime factorization | 19891 | 31013 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19891 | 1, 31013 |
| Number of properties | 4 | 6 |
| Chen primes | 1598th | |
| Harmonic primes | 815th | |
| Isolated primes | 2386th | |
| Palindromic primes | 45th | 52nd |
| Primes | 2250th | 3341st |
| Pythagorean primes | 1664th | |
| Sexy primes (1st member) | 977th | |
| Twin primes (2nd member) | 340th | |
| Roman numberals | ||
| Base 2 | 1001101101100112 | 1111001001001012 |
| Base 3 | 10000212013 | 11201121223 |
| Base 4 | 103123034 | 132102114 |
| Base 5 | 11140315 | 14430235 |
| Base 6 | 2320316 | 3553256 |
| Base 7 | 1116647 | 1562637 |
| Base 8 | 466638 | 744458 |
| Base 9 | 302519 | 464789 |
| Base 10 | 1989110 | 3101310 |
| Base 11 | 13a4311 | 2133411 |
| Base 12 | b61712 | 15b4512 |
| Base 13 | 909113 | 1116813 |
| Base 14 | 736b14 | b43314 |
| Base 15 | 5d6115 | 92c815 |
| Base 16 | 4db316 | 792516 |