Compare 21391 vs 21611
| Property | 21391 | 21611 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 213911 | 216111 |
| Prime factorization | 21391 | 21611 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21391 | 1, 21611 |
| Number of properties | 3 | 8 |
| Additive primes | 1125th | |
| Chen primes | 1191st | |
| Isolated primes | 1676th | |
| Long primes | 916th | |
| Primes | 2401st | 2427th |
| Prime triplets (1st member) | 185th | |
| Sexy primes (1st member) | 729th | 738th |
| Sophie germain primes | 350th | |
| Twin primes (1st member) | 369th | |
| Roman numberals | ||
| Base 2 | 1010011100011112 | 1010100011010112 |
| Base 3 | 10021000213 | 10021221023 |
| Base 4 | 110320334 | 111012234 |
| Base 5 | 11410315 | 11424215 |
| Base 6 | 2430116 | 2440156 |
| Base 7 | 1162367 | 1200027 |
| Base 8 | 516178 | 521538 |
| Base 9 | 323079 | 325729 |
| Base 10 | 2139110 | 2161110 |
| Base 11 | 1508711 | 1526711 |
| Base 12 | 1046712 | 1060b12 |
| Base 13 | 997613 | 9ab513 |
| Base 14 | 7b1d14 | 7c3914 |
| Base 15 | 651115 | 660b15 |
| Base 16 | 538f16 | 546b16 |