Compare 2155 vs 2161
Property | 2155 | 2161 |
---|---|---|
Type | semiprime | prime |
Unique factors | 2 | 1 |
Total factors | 2 | 1 |
Prime factorization | 51 × 4311 | 21611 |
Prime factorization | 5 × 431 | 2161 |
Divisors count | 4 | 2 |
Divisors | 1, 5, 431, 2155 | 1, 2161 |
Number of properties | 1 | 3 |
Isolated primes | 193rd | |
Primes | 326th | |
Pythagorean primes | 159th | |
Semiprimes | 614th | |
Roman numberals | MMCLV | MMCLXI |
Base 2 | 1000011010112 | 1000011100012 |
Base 3 | 22212113 | 22220013 |
Base 4 | 2012234 | 2013014 |
Base 5 | 321105 | 321215 |
Base 6 | 135516 | 140016 |
Base 7 | 61667 | 62057 |
Base 8 | 41538 | 41618 |
Base 9 | 28549 | 28619 |
Base 10 | 215510 | 216110 |
Base 11 | 168a11 | 169511 |
Base 12 | 12b712 | 130112 |
Base 13 | c9a13 | ca313 |
Base 14 | add14 | b0514 |
Base 15 | 98a15 | 99115 |
Base 16 | 86b16 | 87116 |