Compare 21955 vs 21961
Property | 21955 | 21961 |
---|---|---|
Type | semiprime | prime |
Unique factors | 2 | 1 |
Total factors | 2 | 1 |
Prime factorization | 51 × 43911 | 219611 |
Prime factorization | 5 × 4391 | 21961 |
Divisors count | 4 | 2 |
Divisors | 1, 5, 4391, 21955 | 1, 21961 |
Number of properties | 1 | 5 |
Additive primes | 1139th | |
Chen primes | 1206th | |
Isolated primes | 1718th | |
Primes | 2461st | |
Pythagorean primes | 1221st | |
Semiprimes | 5542nd | |
Roman numberals | ||
Base 2 | 1010101110000112 | 1010101110010012 |
Base 3 | 10100100113 | 10100101013 |
Base 4 | 111130034 | 111130214 |
Base 5 | 12003105 | 12003215 |
Base 6 | 2453516 | 2454016 |
Base 7 | 1210037 | 1210127 |
Base 8 | 527038 | 527118 |
Base 9 | 331049 | 331119 |
Base 10 | 2195510 | 2196110 |
Base 11 | 1554a11 | 1555511 |
Base 12 | 1085712 | 1086112 |
Base 13 | 9cbb13 | 9cc413 |
Base 14 | 800314 | 800914 |
Base 15 | 678a15 | 679115 |
Base 16 | 55c316 | 55c916 |