Compare 2131 vs 2161
| Property | 2131 | 2161 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 21311 | 21611 |
| Prime factorization | 2131 | 2161 |
| Divisors count | 2 | 2 |
| Divisors | 1, 2131 | 1, 2161 |
| Number of properties | 5 | 3 |
| Additive primes | 168th | |
| Isolated primes | 193rd | |
| Primes | 321st | 326th |
| Pythagorean primes | 159th | |
| Sexy primes (1st member) | 134th | |
| Sexy prime triplets (1st member) | 51st | |
| Twin primes (2nd member) | 66th | |
| Roman numberals | MMCXXXI | MMCLXI |
| Base 2 | 1000010100112 | 1000011100012 |
| Base 3 | 22202213 | 22220013 |
| Base 4 | 2011034 | 2013014 |
| Base 5 | 320115 | 321215 |
| Base 6 | 135116 | 140016 |
| Base 7 | 61337 | 62057 |
| Base 8 | 41238 | 41618 |
| Base 9 | 28279 | 28619 |
| Base 10 | 213110 | 216110 |
| Base 11 | 166811 | 169511 |
| Base 12 | 129712 | 130112 |
| Base 13 | c7c13 | ca313 |
| Base 14 | ac314 | b0514 |
| Base 15 | 97115 | 99115 |
| Base 16 | 85316 | 87116 |