Compare 212131 vs 212161
| Property | 212131 | 212161 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2121311 | 2121611 |
| Prime factorization | 212131 | 212161 |
| Divisors count | 2 | 2 |
| Divisors | 1, 212131 | 1, 212161 |
| Number of properties | 4 | 5 |
| Additive primes | 7665th | |
| Isolated primes | 14442nd | 14444th |
| Long primes | 7099th | |
| Primes | 18985th | 18987th |
| Pythagorean primes | 9480th | |
| Sexy primes (1st member) | 4503rd | |
| Ulam primes | 1364th | |
| Roman numberals | ||
| Base 2 | 1100111100101000112 | 1100111100110000012 |
| Base 3 | 1012022222013 | 1012100002113 |
| Base 4 | 3033022034 | 3033030014 |
| Base 5 | 232420115 | 232421215 |
| Base 6 | 43140316 | 43141216 |
| Base 7 | 15423137 | 15423557 |
| Base 8 | 6362438 | 6363018 |
| Base 9 | 3528819 | 3530249 |
| Base 10 | 21213110 | 21216110 |
| Base 11 | 13541711 | 13544411 |
| Base 12 | a291712 | a294112 |
| Base 13 | 7572a13 | 7575113 |
| Base 14 | 5744314 | 5746514 |
| Base 15 | 42cc115 | 42ce115 |
| Base 16 | 33ca316 | 33cc116 |