Compare 128661 vs 128663
| Property | 128661 | 128663 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 131 × 32991 | 1286631 |
| Prime factorization | 3 × 13 × 3299 | 128663 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 13, 39, 3299, 9897, 42887, 128661 | 1, 128663 |
| Number of properties | 0 | 11 |
| Chen primes | 5207th | |
| Cousin primes (2nd member) | 1497th | |
| Harmonic primes | 4535th | |
| Isolated primes | 9043rd | |
| Long primes | 4518th | |
| Primes | 12046th | |
| Prime triplets (3rd member) | 610th | |
| Sexy primes (1st member) | 2990th | |
| Sexy primes (2nd member) | 2989th | |
| Sexy prime triplets (2nd member) | 639th | |
| Ulam primes | 842nd | |
| Roman numberals | ||
| Base 2 | 111110110100101012 | 111110110100101112 |
| Base 3 | 201121110203 | 201121110223 |
| Base 4 | 1331221114 | 1331221134 |
| Base 5 | 131041215 | 131041235 |
| Base 6 | 24313536 | 24313556 |
| Base 7 | 10440517 | 10440537 |
| Base 8 | 3732258 | 3732278 |
| Base 9 | 2154369 | 2154389 |
| Base 10 | 12866110 | 12866310 |
| Base 11 | 8873511 | 8873711 |
| Base 12 | 6255912 | 6255b12 |
| Base 13 | 4674013 | 4674213 |
| Base 14 | 34c6114 | 34c6314 |
| Base 15 | 281c615 | 281c815 |
| Base 16 | 1f69516 | 1f69716 |