Compare 128201 vs 131687
| Property | 128201 | 131687 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1282011 | 1316871 |
| Prime factorization | 128201 | 131687 |
| Divisors count | 2 | 2 |
| Divisors | 1, 128201 | 1, 131687 |
| Number of properties | 6 | 5 |
| Chen primes | 5188th | |
| Good primes | 784th | 794th |
| Isolated primes | 9238th | |
| Long primes | 4606th | |
| Primes | 12001st | 12299th |
| Pythagorean primes | 5966th | |
| Safe primes | 837th | |
| Twin primes (1st member) | 1496th | |
| Ulam primes | 839th | |
| Roman numberals | ||
| Base 2 | 111110100110010012 | 1000000010011001112 |
| Base 3 | 201112120123 | 202001220223 |
| Base 4 | 1331030214 | 2000212134 |
| Base 5 | 131003015 | 132032225 |
| Base 6 | 24253056 | 24533556 |
| Base 7 | 10425237 | 10556337 |
| Base 8 | 3723118 | 4011478 |
| Base 9 | 2147659 | 2205689 |
| Base 10 | 12820110 | 13168710 |
| Base 11 | 8835711 | 8aa3611 |
| Base 12 | 6223512 | 6425b12 |
| Base 13 | 4647813 | 47c2a13 |
| Base 14 | 34a1314 | 35dc314 |
| Base 15 | 27ebb15 | 2904215 |
| Base 16 | 1f4c916 | 2026716 |