Compare 2131 vs 2221
| Property | 2131 | 2221 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 21311 | 22211 |
| Prime factorization | 2131 | 2221 |
| Divisors count | 2 | 2 |
| Divisors | 1, 2131 | 1, 2221 |
| Number of properties | 5 | 8 |
| Additive primes | 168th | 174th |
| Happy primes | 59th | |
| Isolated primes | 198th | |
| Long primes | 129th | |
| Lucky primes | 74th | |
| Primes | 321st | 331st |
| Pythagorean primes | 161st | |
| Sexy primes (1st member) | 134th | |
| Sexy prime triplets (1st member) | 51st | |
| Super primes | 67th | |
| Twin primes (2nd member) | 66th | |
| Roman numberals | MMCXXXI | MMCCXXI |
| Base 2 | 1000010100112 | 1000101011012 |
| Base 3 | 22202213 | 100010213 |
| Base 4 | 2011034 | 2022314 |
| Base 5 | 320115 | 323415 |
| Base 6 | 135116 | 141416 |
| Base 7 | 61337 | 63227 |
| Base 8 | 41238 | 42558 |
| Base 9 | 28279 | 30379 |
| Base 10 | 213110 | 222110 |
| Base 11 | 166811 | 173a11 |
| Base 12 | 129712 | 135112 |
| Base 13 | c7c13 | 101b13 |
| Base 14 | ac314 | b4914 |
| Base 15 | 97115 | 9d115 |
| Base 16 | 85316 | 8ad16 |