Compare 20287 vs 20389
| Property | 20287 | 20389 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 202871 | 203891 |
| Prime factorization | 20287 | 20389 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20287 | 1, 20389 |
| Number of properties | 4 | 5 |
| Additive primes | 1065th | |
| Chen primes | 1126th | |
| Cousin primes (1st member) | 351st | |
| Isolated primes | 1603rd | 1612th |
| Primes | 2292nd | 2303rd |
| Pythagorean primes | 1148th | |
| Ulam primes | 168th | |
| Roman numberals | ||
| Base 2 | 1001111001111112 | 1001111101001012 |
| Base 3 | 10002111013 | 10002220113 |
| Base 4 | 103303334 | 103322114 |
| Base 5 | 11221225 | 11230245 |
| Base 6 | 2335316 | 2342216 |
| Base 7 | 1131017 | 1133057 |
| Base 8 | 474778 | 476458 |
| Base 9 | 307419 | 308649 |
| Base 10 | 2028710 | 2038910 |
| Base 11 | 1427311 | 1435611 |
| Base 12 | b8a712 | b97112 |
| Base 13 | 930713 | 938513 |
| Base 14 | 757114 | 760514 |
| Base 15 | 602715 | 609415 |
| Base 16 | 4f3f16 | 4fa516 |