Compare 21961 vs 21970
Property | 21961 | 21970 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 3 |
Total factors | 1 | 5 |
Prime factorization | 219611 | 21 × 51 × 133 |
Prime factorization | 21961 | 2 × 5 × 13 × 13 × 13 |
Divisors count | 2 | 16 |
Divisors | 1, 21961 | 1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 2197, 4394, 10985, 21970 |
Number of properties | 5 | 0 |
Additive primes | 1139th | |
Chen primes | 1206th | |
Isolated primes | 1718th | |
Primes | 2461st | |
Pythagorean primes | 1221st | |
Roman numberals | ||
Base 2 | 1010101110010012 | 1010101110100102 |
Base 3 | 10100101013 | 10100102013 |
Base 4 | 111130214 | 111131024 |
Base 5 | 12003215 | 12003405 |
Base 6 | 2454016 | 2454146 |
Base 7 | 1210127 | 1210247 |
Base 8 | 527118 | 527228 |
Base 9 | 331119 | 331219 |
Base 10 | 2196110 | 2197010 |
Base 11 | 1555511 | 1556311 |
Base 12 | 1086112 | 1086a12 |
Base 13 | 9cc413 | a00013 |
Base 14 | 800914 | 801414 |
Base 15 | 679115 | 679a15 |
Base 16 | 55c916 | 55d216 |