Compare 20389 vs 20397
| Property | 20389 | 20397 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 203891 | 31 × 131 × 5231 |
| Prime factorization | 20389 | 3 × 13 × 523 |
| Divisors count | 2 | 8 |
| Divisors | 1, 20389 | 1, 3, 13, 39, 523, 1569, 6799, 20397 |
| Number of properties | 5 | 0 |
| Cousin primes (1st member) | 351st | |
| Isolated primes | 1612th | |
| Primes | 2303rd | |
| Pythagorean primes | 1148th | |
| Ulam primes | 168th | |
| Roman numberals | ||
| Base 2 | 1001111101001012 | 1001111101011012 |
| Base 3 | 10002220113 | 10002221103 |
| Base 4 | 103322114 | 103322314 |
| Base 5 | 11230245 | 11230425 |
| Base 6 | 2342216 | 2342336 |
| Base 7 | 1133057 | 1133167 |
| Base 8 | 476458 | 476558 |
| Base 9 | 308649 | 308739 |
| Base 10 | 2038910 | 2039710 |
| Base 11 | 1435611 | 1436311 |
| Base 12 | b97112 | b97912 |
| Base 13 | 938513 | 939013 |
| Base 14 | 760514 | 760d14 |
| Base 15 | 609415 | 609c15 |
| Base 16 | 4fa516 | 4fad16 |