Compare 20981 vs 21611
| Property | 20981 | 21611 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209811 | 216111 |
| Prime factorization | 20981 | 21611 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20981 | 1, 21611 |
| Number of properties | 5 | 8 |
| Additive primes | 1125th | |
| Chen primes | 1161st | 1191st |
| Good primes | 265th | |
| Long primes | 916th | |
| Primes | 2359th | 2427th |
| Prime triplets (1st member) | 185th | |
| Pythagorean primes | 1172nd | |
| Sexy primes (1st member) | 738th | |
| Sophie germain primes | 350th | |
| Twin primes (1st member) | 357th | 369th |
| Roman numberals | ||
| Base 2 | 1010001111101012 | 1010100011010112 |
| Base 3 | 10012100023 | 10021221023 |
| Base 4 | 110133114 | 111012234 |
| Base 5 | 11324115 | 11424215 |
| Base 6 | 2410456 | 2440156 |
| Base 7 | 1151127 | 1200027 |
| Base 8 | 507658 | 521538 |
| Base 9 | 317029 | 325729 |
| Base 10 | 2098110 | 2161110 |
| Base 11 | 1484411 | 1526711 |
| Base 12 | 1018512 | 1060b12 |
| Base 13 | 971c13 | 9ab513 |
| Base 14 | 790914 | 7c3914 |
| Base 15 | 633b15 | 660b15 |
| Base 16 | 51f516 | 546b16 |