Compare 2131 vs 2311
| Property | 2131 | 2311 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 21311 | 23111 |
| Prime factorization | 2131 | 2311 |
| Divisors count | 2 | 2 |
| Divisors | 1, 2131 | 1, 2311 |
| Number of properties | 5 | 6 |
| Additive primes | 168th | 180th |
| Centered decagonal primes | 15th | |
| Euclid primes | 6th | |
| Lucky primes | 78th | |
| Primes | 321st | 344th |
| Sexy primes (1st member) | 134th | |
| Sexy prime triplets (1st member) | 51st | |
| Twin primes (2nd member) | 66th | 70th |
| Roman numberals | MMCXXXI | MMCCCXI |
| Base 2 | 1000010100112 | 1001000001112 |
| Base 3 | 22202213 | 100111213 |
| Base 4 | 2011034 | 2100134 |
| Base 5 | 320115 | 332215 |
| Base 6 | 135116 | 144116 |
| Base 7 | 61337 | 65117 |
| Base 8 | 41238 | 44078 |
| Base 9 | 28279 | 31479 |
| Base 10 | 213110 | 231110 |
| Base 11 | 166811 | 181111 |
| Base 12 | 129712 | 140712 |
| Base 13 | c7c13 | 108a13 |
| Base 14 | ac314 | bb114 |
| Base 15 | 97115 | a4115 |
| Base 16 | 85316 | 90716 |