Compare 21847 vs 21851
| Property | 21847 | 21851 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 31211 | 218511 |
| Prime factorization | 7 × 3121 | 21851 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 3121, 21847 | 1, 21851 |
| Number of properties | 1 | 4 |
| Additive primes | 1134th | |
| Isolated primes | 1708th | |
| Long primes | 927th | |
| Primes | 2451st | |
| Semiprimes | 5517th | |
| Roman numberals | ||
| Base 2 | 1010101010101112 | 1010101010110112 |
| Base 3 | 10022220113 | 10022220223 |
| Base 4 | 111111134 | 111111234 |
| Base 5 | 11443425 | 11444015 |
| Base 6 | 2450516 | 2450556 |
| Base 7 | 1204607 | 1204647 |
| Base 8 | 525278 | 525338 |
| Base 9 | 328649 | 328689 |
| Base 10 | 2184710 | 2185110 |
| Base 11 | 1546111 | 1546511 |
| Base 12 | 1078712 | 1078b12 |
| Base 13 | 9c3713 | 9c3b13 |
| Base 14 | 7d6714 | 7d6b14 |
| Base 15 | 671715 | 671b15 |
| Base 16 | 555716 | 555b16 |