Compare 1237 vs 1381
| Property | 1237 | 1381 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12371 | 13811 |
| Prime factorization | 1237 | 1381 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1237 | 1, 1381 |
| Number of properties | 7 | 7 |
| Additive primes | 109th | 122nd |
| Chen primes | 144th | |
| Emirps | 57th | 64th |
| Harmonic primes | 71st | |
| Isolated primes | 120th | 130th |
| Long primes | 86th | |
| Primes | 203rd | 221st |
| Pythagorean primes | 100th | 109th |
| Sexy primes (2nd member) | 88th | |
| Roman numberals | MCCXXXVII | MCCCLXXXI |
| Base 2 | 100110101012 | 101011001012 |
| Base 3 | 12002113 | 12200113 |
| Base 4 | 1031114 | 1112114 |
| Base 5 | 144225 | 210115 |
| Base 6 | 54216 | 102216 |
| Base 7 | 34157 | 40127 |
| Base 8 | 23258 | 25458 |
| Base 9 | 16249 | 18049 |
| Base 10 | 123710 | 138110 |
| Base 11 | a2511 | 104611 |
| Base 12 | 87112 | 97112 |
| Base 13 | 74213 | 82313 |
| Base 14 | 64514 | 70914 |
| Base 15 | 57715 | 62115 |
| Base 16 | 4d516 | 56516 |