Compare 20939 vs 21221
| Property | 20939 | 21221 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 209391 | 212211 |
| Prime factorization | 20939 | 21221 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20939 | 1, 21221 |
| Number of properties | 7 | 6 |
| Additive primes | 1093rd | |
| Chen primes | 1159th | 1172nd |
| Isolated primes | 1644th | 1665th |
| Long primes | 895th | |
| Primes | 2355th | 2386th |
| Pythagorean primes | 1184th | |
| Sexy primes (1st member) | 723rd | |
| Sophie germain primes | 340th | 346th |
| Ulam primes | 176th | |
| Roman numberals | ||
| Base 2 | 1010001110010112 | 1010010111001012 |
| Base 3 | 10012011123 | 10020022223 |
| Base 4 | 110130234 | 110232114 |
| Base 5 | 11322245 | 11343415 |
| Base 6 | 2405356 | 2421256 |
| Base 7 | 1150227 | 1156047 |
| Base 8 | 507138 | 513458 |
| Base 9 | 316459 | 320889 |
| Base 10 | 2093910 | 2122110 |
| Base 11 | 1480611 | 14a4211 |
| Base 12 | 1014b12 | 1034512 |
| Base 13 | 96b913 | 987513 |
| Base 14 | 78b914 | 7a3b14 |
| Base 15 | 630e15 | 644b15 |
| Base 16 | 51cb16 | 52e516 |