Compare 20389 vs 20681
| Property | 20389 | 20681 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 203891 | 206811 |
| Prime factorization | 20389 | 20681 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20389 | 1, 20681 |
| Number of properties | 5 | 5 |
| Additive primes | 1082nd | |
| Cousin primes (1st member) | 351st | |
| Good primes | 258th | |
| Isolated primes | 1612th | 1628th |
| Primes | 2303rd | 2329th |
| Pythagorean primes | 1148th | 1158th |
| Ulam primes | 168th | |
| Roman numberals | ||
| Base 2 | 1001111101001012 | 1010000110010012 |
| Base 3 | 10002220113 | 10011002223 |
| Base 4 | 103322114 | 110030214 |
| Base 5 | 11230245 | 11302115 |
| Base 6 | 2342216 | 2354256 |
| Base 7 | 1133057 | 1142037 |
| Base 8 | 476458 | 503118 |
| Base 9 | 308649 | 313289 |
| Base 10 | 2038910 | 2068110 |
| Base 11 | 1435611 | 145a111 |
| Base 12 | b97112 | bb7512 |
| Base 13 | 938513 | 954b13 |
| Base 14 | 760514 | 777314 |
| Base 15 | 609415 | 61db15 |
| Base 16 | 4fa516 | 50c916 |