Compare 21961 vs 21967
Property | 21961 | 21967 |
---|---|---|
Type | prime | semiprime |
Unique factors | 1 | 2 |
Total factors | 1 | 2 |
Prime factorization | 219611 | 111 × 19971 |
Prime factorization | 21961 | 11 × 1997 |
Divisors count | 2 | 4 |
Divisors | 1, 21961 | 1, 11, 1997, 21967 |
Number of properties | 5 | 1 |
Additive primes | 1139th | |
Chen primes | 1206th | |
Isolated primes | 1718th | |
Primes | 2461st | |
Pythagorean primes | 1221st | |
Semiprimes | 5546th | |
Roman numberals | ||
Base 2 | 1010101110010012 | 1010101110011112 |
Base 3 | 10100101013 | 10100101213 |
Base 4 | 111130214 | 111130334 |
Base 5 | 12003215 | 12003325 |
Base 6 | 2454016 | 2454116 |
Base 7 | 1210127 | 1210217 |
Base 8 | 527118 | 527178 |
Base 9 | 331119 | 331179 |
Base 10 | 2196110 | 2196710 |
Base 11 | 1555511 | 1556011 |
Base 12 | 1086112 | 1086712 |
Base 13 | 9cc413 | 9cca13 |
Base 14 | 800914 | 801114 |
Base 15 | 679115 | 679715 |
Base 16 | 55c916 | 55cf16 |