Compare 21521 vs 21839
| Property | 21521 | 21839 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 215211 | 218391 |
| Prime factorization | 21521 | 21839 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21521 | 1, 21839 |
| Number of properties | 7 | 5 |
| Additive primes | 1119th | 1133rd |
| Chen primes | 1184th | 1202nd |
| Cousin primes (2nd member) | 368th | |
| Harmonic primes | 902nd | |
| Primes | 2415th | 2449th |
| Prime triplets (2nd member) | 183rd | |
| Pythagorean primes | 1197th | |
| Twin primes (1st member) | 365th | 372nd |
| Roman numberals | ||
| Base 2 | 1010100000100012 | 1010101010011112 |
| Base 3 | 10021120023 | 10022212123 |
| Base 4 | 111001014 | 111110334 |
| Base 5 | 11420415 | 11443245 |
| Base 6 | 2433456 | 2450356 |
| Base 7 | 1165137 | 1204467 |
| Base 8 | 520218 | 525178 |
| Base 9 | 324629 | 328559 |
| Base 10 | 2152110 | 2183910 |
| Base 11 | 1519511 | 1545411 |
| Base 12 | 1055512 | 1077b12 |
| Base 13 | 9a4613 | 9c2c13 |
| Base 14 | 7bb314 | 7d5d14 |
| Base 15 | 659b15 | 670e15 |
| Base 16 | 541116 | 554f16 |