Compare 20387 vs 20389
| Property | 20387 | 20389 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 191 × 291 × 371 | 203891 |
| Prime factorization | 19 × 29 × 37 | 20389 |
| Divisors count | 8 | 2 |
| Divisors | 1, 19, 29, 37, 551, 703, 1073, 20387 | 1, 20389 |
| Number of properties | 0 | 5 |
| Cousin primes (1st member) | 351st | |
| Isolated primes | 1612th | |
| Primes | 2303rd | |
| Pythagorean primes | 1148th | |
| Ulam primes | 168th | |
| Roman numberals | ||
| Base 2 | 1001111101000112 | 1001111101001012 |
| Base 3 | 10002220023 | 10002220113 |
| Base 4 | 103322034 | 103322114 |
| Base 5 | 11230225 | 11230245 |
| Base 6 | 2342156 | 2342216 |
| Base 7 | 1133037 | 1133057 |
| Base 8 | 476438 | 476458 |
| Base 9 | 308629 | 308649 |
| Base 10 | 2038710 | 2038910 |
| Base 11 | 1435411 | 1435611 |
| Base 12 | b96b12 | b97112 |
| Base 13 | 938313 | 938513 |
| Base 14 | 760314 | 760514 |
| Base 15 | 609215 | 609415 |
| Base 16 | 4fa316 | 4fa516 |