Compare 1381 vs 1597
| Property | 1381 | 1597 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 13811 | 15971 |
| Prime factorization | 1381 | 1597 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1381 | 1, 1597 |
| Number of properties | 7 | 9 |
| Additive primes | 122nd | |
| Chen primes | 144th | |
| Cousin primes (1st member) | 57th | |
| Emirps | 64th | 77th |
| Fibonacci primes | 7th | |
| Good primes | 56th | |
| Isolated primes | 130th | 152nd |
| Long primes | 86th | |
| Lucky primes | 61st | |
| Primes | 221st | 251st |
| Pythagorean primes | 109th | 119th |
| Super primes | 54th | |
| Roman numberals | MCCCLXXXI | MDXCVII |
| Base 2 | 101011001012 | 110001111012 |
| Base 3 | 12200113 | 20120113 |
| Base 4 | 1112114 | 1203314 |
| Base 5 | 210115 | 223425 |
| Base 6 | 102216 | 112216 |
| Base 7 | 40127 | 44417 |
| Base 8 | 25458 | 30758 |
| Base 9 | 18049 | 21649 |
| Base 10 | 138110 | 159710 |
| Base 11 | 104611 | 122211 |
| Base 12 | 97112 | b1112 |
| Base 13 | 82313 | 95b13 |
| Base 14 | 70914 | 82114 |
| Base 15 | 62115 | 71715 |
| Base 16 | 56516 | 63d16 |