Compare 20921 vs 21277
| Property | 20921 | 21277 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209211 | 212771 |
| Prime factorization | 20921 | 21277 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20921 | 1, 21277 |
| Number of properties | 5 | 6 |
| Additive primes | 1109th | |
| Harmonic primes | 864th | 876th |
| Isolated primes | 1642nd | 1669th |
| Primes | 2353rd | 2390th |
| Pythagorean primes | 1170th | 1186th |
| Sexy primes (1st member) | 724th | |
| Sophie germain primes | 339th | |
| Roman numberals | ||
| Base 2 | 1010001101110012 | 1010011000111012 |
| Base 3 | 10012002123 | 10020120013 |
| Base 4 | 110123214 | 110301314 |
| Base 5 | 11321415 | 11401025 |
| Base 6 | 2405056 | 2423016 |
| Base 7 | 1146657 | 1160147 |
| Base 8 | 506718 | 514358 |
| Base 9 | 316259 | 321619 |
| Base 10 | 2092110 | 2127710 |
| Base 11 | 1479a11 | 14a9311 |
| Base 12 | 1013512 | 1039112 |
| Base 13 | 96a413 | 98b913 |
| Base 14 | 78a514 | 7a7b14 |
| Base 15 | 62eb15 | 648715 |
| Base 16 | 51b916 | 531d16 |