Compare 20912 vs 20921
| Property | 20912 | 20921 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 24 × 13071 | 209211 |
| Prime factorization | 2 × 2 × 2 × 2 × 1307 | 20921 |
| Divisors count | 10 | 2 |
| Divisors | 1, 2, 4, 8, 16, 1307, 2614, 5228, 10456, 20912 | 1, 20921 |
| Number of properties | 0 | 5 |
| Harmonic primes | 864th | |
| Isolated primes | 1642nd | |
| Primes | 2353rd | |
| Pythagorean primes | 1170th | |
| Sophie germain primes | 339th | |
| Roman numberals | ||
| Base 2 | 1010001101100002 | 1010001101110012 |
| Base 3 | 10012001123 | 10012002123 |
| Base 4 | 110123004 | 110123214 |
| Base 5 | 11321225 | 11321415 |
| Base 6 | 2404526 | 2405056 |
| Base 7 | 1146537 | 1146657 |
| Base 8 | 506608 | 506718 |
| Base 9 | 316159 | 316259 |
| Base 10 | 2091210 | 2092110 |
| Base 11 | 1479111 | 1479a11 |
| Base 12 | 1012812 | 1013512 |
| Base 13 | 969813 | 96a413 |
| Base 14 | 789a14 | 78a514 |
| Base 15 | 62e215 | 62eb15 |
| Base 16 | 51b016 | 51b916 |