Compare 21557 vs 21839
| Property | 21557 | 21839 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 215571 | 218391 |
| Prime factorization | 21557 | 21839 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21557 | 1, 21839 |
| Number of properties | 8 | 5 |
| Additive primes | 1133rd | |
| Chen primes | 1186th | 1202nd |
| Good primes | 273rd | |
| Harmonic primes | 902nd | |
| Primes | 2418th | 2449th |
| Prime triplets (1st member) | 184th | |
| Pythagorean primes | 1199th | |
| Sexy primes (1st member) | 736th | |
| Sexy prime triplets (1st member) | 201st | |
| Twin primes (1st member) | 366th | 372nd |
| Roman numberals | ||
| Base 2 | 1010100001101012 | 1010101010011112 |
| Base 3 | 10021201023 | 10022212123 |
| Base 4 | 111003114 | 111110334 |
| Base 5 | 11422125 | 11443245 |
| Base 6 | 2434456 | 2450356 |
| Base 7 | 1165647 | 1204467 |
| Base 8 | 520658 | 525178 |
| Base 9 | 325129 | 328559 |
| Base 10 | 2155710 | 2183910 |
| Base 11 | 1521811 | 1545411 |
| Base 12 | 1058512 | 1077b12 |
| Base 13 | 9a7313 | 9c2c13 |
| Base 14 | 7bdb14 | 7d5d14 |
| Base 15 | 65c215 | 670e15 |
| Base 16 | 543516 | 554f16 |