Compare 128321 vs 131687
| Property | 128321 | 131687 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1283211 | 1316871 |
| Prime factorization | 128321 | 131687 |
| Divisors count | 2 | 2 |
| Divisors | 1, 128321 | 1, 131687 |
| Number of properties | 10 | 5 |
| Additive primes | 4951st | |
| Chen primes | 5191st | |
| Emirps | 2419th | |
| Good primes | 787th | 794th |
| Harmonic primes | 4523rd | |
| Isolated primes | 9019th | 9238th |
| Long primes | 4606th | |
| Primes | 12012th | 12299th |
| Pythagorean primes | 5972nd | |
| Safe primes | 837th | |
| Sexy primes (1st member) | 2981st | |
| Sophie germain primes | 1439th | |
| Roman numberals | ||
| Base 2 | 111110101010000012 | 1000000010011001112 |
| Base 3 | 201120001223 | 202001220223 |
| Base 4 | 1331110014 | 2000212134 |
| Base 5 | 131012415 | 132032225 |
| Base 6 | 24300256 | 24533556 |
| Base 7 | 10430547 | 10556337 |
| Base 8 | 3725018 | 4011478 |
| Base 9 | 2150189 | 2205689 |
| Base 10 | 12832110 | 13168710 |
| Base 11 | 8845611 | 8aa3611 |
| Base 12 | 6231512 | 6425b12 |
| Base 13 | 4653b13 | 47c2a13 |
| Base 14 | 34a9b14 | 35dc314 |
| Base 15 | 2804b15 | 2904215 |
| Base 16 | 1f54116 | 2026716 |