Compare 21863 vs 21961
| Property | 21863 | 21961 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 218631 | 219611 |
| Prime factorization | 21863 | 21961 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21863 | 1, 21961 |
| Number of properties | 7 | 5 |
| Additive primes | 1139th | |
| Chen primes | 1203rd | 1206th |
| Cousin primes (2nd member) | 373rd | |
| Harmonic primes | 904th | |
| Isolated primes | 1710th | 1718th |
| Long primes | 929th | |
| Primes | 2453rd | 2461st |
| Pythagorean primes | 1221st | |
| Ulam primes | 183rd | |
| Roman numberals | ||
| Base 2 | 1010101011001112 | 1010101110010012 |
| Base 3 | 10022222023 | 10100101013 |
| Base 4 | 111112134 | 111130214 |
| Base 5 | 11444235 | 12003215 |
| Base 6 | 2451156 | 2454016 |
| Base 7 | 1205127 | 1210127 |
| Base 8 | 525478 | 527118 |
| Base 9 | 328829 | 331119 |
| Base 10 | 2186310 | 2196110 |
| Base 11 | 1547611 | 1555511 |
| Base 12 | 1079b12 | 1086112 |
| Base 13 | 9c4a13 | 9cc413 |
| Base 14 | 7d7914 | 800914 |
| Base 15 | 672815 | 679115 |
| Base 16 | 556716 | 55c916 |