Compare 21345 vs 21347
| Property | 21345 | 21347 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 51 × 14231 | 213471 |
| Prime factorization | 3 × 5 × 1423 | 21347 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 5, 15, 1423, 4269, 7115, 21345 | 1, 21347 |
| Number of properties | 0 | 7 |
| Additive primes | 1112th | |
| Chen primes | 1176th | |
| Happy primes | 397th | |
| Isolated primes | 1674th | |
| Primes | 2397th | |
| Sexy primes (2nd member) | 727th | |
| Ulam primes | 182nd | |
| Roman numberals | ||
| Base 2 | 1010011011000012 | 1010011011000112 |
| Base 3 | 10020211203 | 10020211223 |
| Base 4 | 110312014 | 110312034 |
| Base 5 | 11403405 | 11403425 |
| Base 6 | 2424536 | 2424556 |
| Base 7 | 1161427 | 1161447 |
| Base 8 | 515418 | 515438 |
| Base 9 | 322469 | 322489 |
| Base 10 | 2134510 | 2134710 |
| Base 11 | 1504511 | 1504711 |
| Base 12 | 1042912 | 1042b12 |
| Base 13 | 993c13 | 994113 |
| Base 14 | 7ac914 | 7acb14 |
| Base 15 | 64d015 | 64d215 |
| Base 16 | 536116 | 536316 |