Compare 20857 vs 20858
| Property | 20857 | 20858 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 208571 | 21 × 104291 |
| Prime factorization | 20857 | 2 × 10429 |
| Divisors count | 2 | 4 |
| Divisors | 1, 20857 | 1, 2, 10429, 20858 |
| Number of properties | 4 | 1 |
| Isolated primes | 1637th | |
| Long primes | 891st | |
| Primes | 2346th | |
| Pythagorean primes | 1167th | |
| Semiprimes | 5293rd | |
| Roman numberals | ||
| Base 2 | 1010001011110012 | 1010001011110102 |
| Base 3 | 10011211113 | 10011211123 |
| Base 4 | 110113214 | 110113224 |
| Base 5 | 11314125 | 11314135 |
| Base 6 | 2403216 | 2403226 |
| Base 7 | 1145447 | 1145457 |
| Base 8 | 505718 | 505728 |
| Base 9 | 315449 | 315459 |
| Base 10 | 2085710 | 2085810 |
| Base 11 | 1474111 | 1474211 |
| Base 12 | 100a112 | 100a212 |
| Base 13 | 965513 | 965613 |
| Base 14 | 785b14 | 785c14 |
| Base 15 | 62a715 | 62a815 |
| Base 16 | 517916 | 517a16 |