Compare 20920 vs 20921
| Property | 20920 | 20921 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 23 × 51 × 5231 | 209211 |
| Prime factorization | 2 × 2 × 2 × 5 × 523 | 20921 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 4184, 5230, 10460, 20920 | 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 | 1010001101110002 | 1010001101110012 |
| Base 3 | 10012002113 | 10012002123 |
| Base 4 | 110123204 | 110123214 |
| Base 5 | 11321405 | 11321415 |
| Base 6 | 2405046 | 2405056 |
| Base 7 | 1146647 | 1146657 |
| Base 8 | 506708 | 506718 |
| Base 9 | 316249 | 316259 |
| Base 10 | 2092010 | 2092110 |
| Base 11 | 1479911 | 1479a11 |
| Base 12 | 1013412 | 1013512 |
| Base 13 | 96a313 | 96a413 |
| Base 14 | 78a414 | 78a514 |
| Base 15 | 62ea15 | 62eb15 |
| Base 16 | 51b816 | 51b916 |