Compare 1381 vs 1559
| Property | 1381 | 1559 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13811 | 15591 |
| Prime factorization | 1381 | 1559 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1381 | 1, 1559 |
| Number of properties | 7 | 6 |
| Additive primes | 122nd | |
| Chen primes | 144th | 157th |
| Emirps | 64th | 75th |
| Isolated primes | 130th | 147th |
| Long primes | 86th | |
| Primes | 221st | 246th |
| Pythagorean primes | 109th | |
| Sexy primes (2nd member) | 107th | |
| Sophie germain primes | 52nd | |
| Roman numberals | MCCCLXXXI | MDLIX |
| Base 2 | 101011001012 | 110000101112 |
| Base 3 | 12200113 | 20102023 |
| Base 4 | 1112114 | 1201134 |
| Base 5 | 210115 | 222145 |
| Base 6 | 102216 | 111156 |
| Base 7 | 40127 | 43557 |
| Base 8 | 25458 | 30278 |
| Base 9 | 18049 | 21229 |
| Base 10 | 138110 | 155910 |
| Base 11 | 104611 | 119811 |
| Base 12 | 97112 | a9b12 |
| Base 13 | 82313 | 92c13 |
| Base 14 | 70914 | 7d514 |
| Base 15 | 62115 | 6de15 |
| Base 16 | 56516 | 61716 |