Compare 20389 vs 20807
| Property | 20389 | 20807 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 203891 | 208071 |
| Prime factorization | 20389 | 20807 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20389 | 1, 20807 |
| Number of properties | 5 | 7 |
| Additive primes | 1090th | |
| Chen primes | 1154th | |
| Cousin primes (1st member) | 351st | |
| Harmonic primes | 858th | |
| Isolated primes | 1612th | |
| Long primes | 890th | |
| Primes | 2303rd | 2343rd |
| Pythagorean primes | 1148th | |
| Twin primes (1st member) | 355th | |
| Ulam primes | 168th | 174th |
| Roman numberals | ||
| Base 2 | 1001111101001012 | 1010001010001112 |
| Base 3 | 10002220113 | 10011121223 |
| Base 4 | 103322114 | 110110134 |
| Base 5 | 11230245 | 11312125 |
| Base 6 | 2342216 | 2401556 |
| Base 7 | 1133057 | 1144437 |
| Base 8 | 476458 | 505078 |
| Base 9 | 308649 | 314789 |
| Base 10 | 2038910 | 2080710 |
| Base 11 | 1435611 | 146a611 |
| Base 12 | b97112 | 1005b12 |
| Base 13 | 938513 | 961713 |
| Base 14 | 760514 | 782314 |
| Base 15 | 609415 | 627215 |
| Base 16 | 4fa516 | 514716 |