Compare 20807 vs 20921
| Property | 20807 | 20921 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 208071 | 209211 |
| Prime factorization | 20807 | 20921 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20807 | 1, 20921 |
| Number of properties | 7 | 5 |
| Additive primes | 1090th | |
| Chen primes | 1154th | |
| Harmonic primes | 858th | 864th |
| Isolated primes | 1642nd | |
| Long primes | 890th | |
| Primes | 2343rd | 2353rd |
| Pythagorean primes | 1170th | |
| Sophie germain primes | 339th | |
| Twin primes (1st member) | 355th | |
| Ulam primes | 174th | |
| Roman numberals | ||
| Base 2 | 1010001010001112 | 1010001101110012 |
| Base 3 | 10011121223 | 10012002123 |
| Base 4 | 110110134 | 110123214 |
| Base 5 | 11312125 | 11321415 |
| Base 6 | 2401556 | 2405056 |
| Base 7 | 1144437 | 1146657 |
| Base 8 | 505078 | 506718 |
| Base 9 | 314789 | 316259 |
| Base 10 | 2080710 | 2092110 |
| Base 11 | 146a611 | 1479a11 |
| Base 12 | 1005b12 | 1013512 |
| Base 13 | 961713 | 96a413 |
| Base 14 | 782314 | 78a514 |
| Base 15 | 627215 | 62eb15 |
| Base 16 | 514716 | 51b916 |