Compare 2131 vs 2138
| Property | 2131 | 2138 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 21311 | 21 × 10691 |
| Prime factorization | 2131 | 2 × 1069 |
| Divisors count | 2 | 4 |
| Divisors | 1, 2131 | 1, 2, 1069, 2138 |
| Number of properties | 5 | 1 |
| Additive primes | 168th | |
| Primes | 321st | |
| Semiprimes | 611th | |
| Sexy primes (1st member) | 134th | |
| Sexy prime triplets (1st member) | 51st | |
| Twin primes (2nd member) | 66th | |
| Roman numberals | MMCXXXI | MMCXXXVIII |
| Base 2 | 1000010100112 | 1000010110102 |
| Base 3 | 22202213 | 22210123 |
| Base 4 | 2011034 | 2011224 |
| Base 5 | 320115 | 320235 |
| Base 6 | 135116 | 135226 |
| Base 7 | 61337 | 61437 |
| Base 8 | 41238 | 41328 |
| Base 9 | 28279 | 28359 |
| Base 10 | 213110 | 213810 |
| Base 11 | 166811 | 167411 |
| Base 12 | 129712 | 12a212 |
| Base 13 | c7c13 | c8613 |
| Base 14 | ac314 | aca14 |
| Base 15 | 97115 | 97815 |
| Base 16 | 85316 | 85a16 |