Compare 20809 vs 20921
| Property | 20809 | 20921 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 208091 | 209211 |
| Prime factorization | 20809 | 20921 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20809 | 1, 20921 |
| Number of properties | 5 | 5 |
| Additive primes | 1091st | |
| Harmonic primes | 859th | 864th |
| Isolated primes | 1642nd | |
| Primes | 2344th | 2353rd |
| Pythagorean primes | 1165th | 1170th |
| Sophie germain primes | 339th | |
| Twin primes (2nd member) | 355th | |
| Roman numberals | ||
| Base 2 | 1010001010010012 | 1010001101110012 |
| Base 3 | 10011122013 | 10012002123 |
| Base 4 | 110110214 | 110123214 |
| Base 5 | 11312145 | 11321415 |
| Base 6 | 2402016 | 2405056 |
| Base 7 | 1144457 | 1146657 |
| Base 8 | 505118 | 506718 |
| Base 9 | 314819 | 316259 |
| Base 10 | 2080910 | 2092110 |
| Base 11 | 146a811 | 1479a11 |
| Base 12 | 1006112 | 1013512 |
| Base 13 | 961913 | 96a413 |
| Base 14 | 782514 | 78a514 |
| Base 15 | 627415 | 62eb15 |
| Base 16 | 514916 | 51b916 |