Compare 20921 vs 21169
| Property | 20921 | 21169 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209211 | 211691 |
| Prime factorization | 20921 | 21169 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20921 | 1, 21169 |
| Number of properties | 5 | 9 |
| Additive primes | 1106th | |
| Chen primes | 1169th | |
| Cuban primes 2 | 17th | |
| Harmonic primes | 864th | |
| Isolated primes | 1642nd | 1661st |
| Lucky primes | 386th | |
| Primes | 2353rd | 2380th |
| Pythagorean primes | 1170th | 1182nd |
| Sexy primes (2nd member) | 721st | |
| Sexy prime triplets (3rd member) | 197th | |
| Sophie germain primes | 339th | |
| Roman numberals | ||
| Base 2 | 1010001101110012 | 1010010101100012 |
| Base 3 | 10012002123 | 10020010013 |
| Base 4 | 110123214 | 110223014 |
| Base 5 | 11321415 | 11341345 |
| Base 6 | 2405056 | 2420016 |
| Base 7 | 1146657 | 1155017 |
| Base 8 | 506718 | 512618 |
| Base 9 | 316259 | 320319 |
| Base 10 | 2092110 | 2116910 |
| Base 11 | 1479a11 | 149a511 |
| Base 12 | 1013512 | 1030112 |
| Base 13 | 96a413 | 983513 |
| Base 14 | 78a514 | 7a0114 |
| Base 15 | 62eb15 | 641415 |
| Base 16 | 51b916 | 52b116 |