Compare 20921 vs 20926
| Property | 20921 | 20926 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 209211 | 21 × 104631 |
| Prime factorization | 20921 | 2 × 10463 |
| Divisors count | 2 | 4 |
| Divisors | 1, 20921 | 1, 2, 10463, 20926 |
| Number of properties | 5 | 1 |
| Harmonic primes | 864th | |
| Isolated primes | 1642nd | |
| Primes | 2353rd | |
| Pythagorean primes | 1170th | |
| Semiprimes | 5310th | |
| Sophie germain primes | 339th | |
| Roman numberals | ||
| Base 2 | 1010001101110012 | 1010001101111102 |
| Base 3 | 10012002123 | 10012010013 |
| Base 4 | 110123214 | 110123324 |
| Base 5 | 11321415 | 11322015 |
| Base 6 | 2405056 | 2405146 |
| Base 7 | 1146657 | 1150037 |
| Base 8 | 506718 | 506768 |
| Base 9 | 316259 | 316319 |
| Base 10 | 2092110 | 2092610 |
| Base 11 | 1479a11 | 147a411 |
| Base 12 | 1013512 | 1013a12 |
| Base 13 | 96a413 | 96a913 |
| Base 14 | 78a514 | 78aa14 |
| Base 15 | 62eb15 | 630115 |
| Base 16 | 51b916 | 51be16 |