Compare 20389 vs 21187
| Property | 20389 | 21187 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 203891 | 211871 |
| Prime factorization | 20389 | 21187 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20389 | 1, 21187 |
| Number of properties | 5 | 7 |
| Additive primes | 1107th | |
| Cousin primes (1st member) | 351st | 361st |
| Harmonic primes | 874th | |
| Isolated primes | 1612th | 1663rd |
| Primes | 2303rd | 2382nd |
| Prime triplets (1st member) | 178th | |
| Pythagorean primes | 1148th | |
| Sexy primes (1st member) | 722nd | |
| Ulam primes | 168th | |
| Roman numberals | ||
| Base 2 | 1001111101001012 | 1010010110000112 |
| Base 3 | 10002220113 | 10020012013 |
| Base 4 | 103322114 | 110230034 |
| Base 5 | 11230245 | 11342225 |
| Base 6 | 2342216 | 2420316 |
| Base 7 | 1133057 | 1155257 |
| Base 8 | 476458 | 513038 |
| Base 9 | 308649 | 320519 |
| Base 10 | 2038910 | 2118710 |
| Base 11 | 1435611 | 14a1111 |
| Base 12 | b97112 | 1031712 |
| Base 13 | 938513 | 984a13 |
| Base 14 | 760514 | 7a1514 |
| Base 15 | 609415 | 642715 |
| Base 16 | 4fa516 | 52c316 |