Compare 664660 vs 664667
| Property | 664660 | 664667 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 22 × 51 × 1671 × 1991 | 6646671 |
| Prime factorization | 2 × 2 × 5 × 167 × 199 | 664667 |
| Divisors count | 24 | 2 |
| Divisors | 1, 2, 4, 5, 10, 20, 167, 199, 334, 398, 668, 796, 835, 995, 1670, 1990, 3340, 3980, 33233, 66466, 132932, 166165, 332330, 664660 | 1, 664667 |
| Number of properties | 0 | 8 |
| Chen primes | 21091st | |
| Cousin primes (2nd member) | 5813th | |
| Primes | 53922nd | |
| Prime quadruplets (3rd member) | 129th | |
| Prime triplets (2nd member) | 2121st | |
| Prime triplets (3rd member) | 2120th | |
| Sexy primes (2nd member) | 11637th | |
| Twin primes (1st member) | 5822nd | |
| Roman numberals | ||
| Base 2 | 101000100100010101002 | 101000100100010110112 |
| Base 3 | 10202022020013 | 10202022020223 |
| Base 4 | 22021011104 | 22021011234 |
| Base 5 | 1322321205 | 1322321325 |
| Base 6 | 221250446 | 221250556 |
| Base 7 | 54355337 | 54355437 |
| Base 8 | 24221248 | 24221338 |
| Base 9 | 12226619 | 12226689 |
| Base 10 | 66466010 | 66466710 |
| Base 11 | 41440711 | 41441311 |
| Base 12 | 28078412 | 28078b12 |
| Base 13 | 1a36b913 | 1a36c313 |
| Base 14 | 13431a14 | 13432314 |
| Base 15 | d1e0a15 | d1e1215 |
| Base 16 | a245416 | a245b16 |