Compare 128287 vs 131431
| Property | 128287 | 131431 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1282871 | 1314311 |
| Prime factorization | 128287 | 131431 |
| Divisors count | 2 | 2 |
| Divisors | 1, 128287 | 1, 131431 |
| Number of properties | 5 | 8 |
| Additive primes | 5065th | |
| Cousin primes (1st member) | 1492nd | |
| Good primes | 785th | 791st |
| Harmonic primes | 4621st | |
| Isolated primes | 9016th | 9222nd |
| Long primes | 4508th | |
| Lucky primes | 1608th | |
| Primes | 12009th | 12277th |
| Sexy primes (1st member) | 3041st | |
| Super primes | 1468th | |
| Roman numberals | ||
| Base 2 | 111110101000111112 | 1000000001011001112 |
| Base 3 | 201112221013 | 202000212113 |
| Base 4 | 1331101334 | 2000112134 |
| Base 5 | 131011225 | 132012115 |
| Base 6 | 24255316 | 24522516 |
| Base 7 | 10430057 | 10551167 |
| Base 8 | 3724378 | 4005478 |
| Base 9 | 2148719 | 2202549 |
| Base 10 | 12828710 | 13143110 |
| Base 11 | 8842511 | 8a82311 |
| Base 12 | 622a712 | 6408712 |
| Base 13 | 4651313 | 47a9113 |
| Base 14 | 34a7514 | 35c7d14 |
| Base 15 | 2802715 | 28e2115 |
| Base 16 | 1f51f16 | 2016716 |