Compare 19387 vs 20389
| Property | 19387 | 20389 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 193871 | 203891 |
| Prime factorization | 19387 | 20389 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19387 | 1, 20389 |
| Number of properties | 5 | 5 |
| Cousin primes (1st member) | 339th | 351st |
| Harmonic primes | 794th | |
| Isolated primes | 1532nd | 1612th |
| Primes | 2195th | 2303rd |
| Pythagorean primes | 1148th | |
| Sexy primes (2nd member) | 670th | |
| Ulam primes | 168th | |
| Roman numberals | ||
| Base 2 | 1001011101110112 | 1001111101001012 |
| Base 3 | 2221210013 | 10002220113 |
| Base 4 | 102323234 | 103322114 |
| Base 5 | 11100225 | 11230245 |
| Base 6 | 2254316 | 2342216 |
| Base 7 | 1103447 | 1133057 |
| Base 8 | 456738 | 476458 |
| Base 9 | 285319 | 308649 |
| Base 10 | 1938710 | 2038910 |
| Base 11 | 1362511 | 1435611 |
| Base 12 | b27712 | b97112 |
| Base 13 | 8a9413 | 938513 |
| Base 14 | 70cb14 | 760514 |
| Base 15 | 5b2715 | 609415 |
| Base 16 | 4bbb16 | 4fa516 |