Compare 19991 vs 31013
| Property | 19991 | 31013 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 199911 | 310131 |
| Prime factorization | 19991 | 31013 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19991 | 1, 31013 |
| Number of properties | 9 | 6 |
| Additive primes | 1049th | |
| Chen primes | 1111th | 1598th |
| Harmonic primes | 820th | |
| Isolated primes | 2386th | |
| Palindromic primes | 46th | 52nd |
| Primes | 2260th | 3341st |
| Prime triplets (1st member) | 168th | |
| Pythagorean primes | 1664th | |
| Sexy primes (1st member) | 693rd | 977th |
| Sophie germain primes | 326th | |
| Twin primes (1st member) | 342nd | |
| Roman numberals | ||
| Base 2 | 1001110000101112 | 1111001001001012 |
| Base 3 | 10001021023 | 11201121223 |
| Base 4 | 103201134 | 132102114 |
| Base 5 | 11144315 | 14430235 |
| Base 6 | 2323156 | 3553256 |
| Base 7 | 1121667 | 1562637 |
| Base 8 | 470278 | 744458 |
| Base 9 | 303729 | 464789 |
| Base 10 | 1999110 | 3101310 |
| Base 11 | 1402411 | 2133411 |
| Base 12 | b69b12 | 15b4512 |
| Base 13 | 913a13 | 1116813 |
| Base 14 | 73dd14 | b43314 |
| Base 15 | 5dcb15 | 92c815 |
| Base 16 | 4e1716 | 792516 |