Compare 21391 vs 21557
Property | 21391 | 21557 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 213911 | 215571 |
Prime factorization | 21391 | 21557 |
Divisors count | 2 | 2 |
Divisors | 1, 21391 | 1, 21557 |
Number of properties | 3 | 8 |
Chen primes | 1186th | |
Good primes | 273rd | |
Isolated primes | 1676th | |
Primes | 2401st | 2418th |
Prime triplets (1st member) | 184th | |
Pythagorean primes | 1199th | |
Sexy primes (1st member) | 729th | 736th |
Sexy prime triplets (1st member) | 201st | |
Twin primes (1st member) | 366th | |
Roman numberals | ||
Base 2 | 1010011100011112 | 1010100001101012 |
Base 3 | 10021000213 | 10021201023 |
Base 4 | 110320334 | 111003114 |
Base 5 | 11410315 | 11422125 |
Base 6 | 2430116 | 2434456 |
Base 7 | 1162367 | 1165647 |
Base 8 | 516178 | 520658 |
Base 9 | 323079 | 325129 |
Base 10 | 2139110 | 2155710 |
Base 11 | 1508711 | 1521811 |
Base 12 | 1046712 | 1058512 |
Base 13 | 997613 | 9a7313 |
Base 14 | 7b1d14 | 7bdb14 |
Base 15 | 651115 | 65c215 |
Base 16 | 538f16 | 543516 |