Compare 663991 vs 664117
| Property | 663991 | 664117 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6639911 | 6641171 |
| Prime factorization | 663991 | 664117 |
| Divisors count | 2 | 2 |
| Divisors | 1, 663991 | 1, 664117 |
| Number of properties | 3 | 7 |
| Cousin primes (1st member) | 5810th | |
| Happy primes | 7638th | |
| Isolated primes | 42236th | 42246th |
| Lucky primes | 6164th | |
| Primes | 53867th | 53877th |
| Prime triplets (1st member) | 2119th | |
| Sexy primes (1st member) | 11629th | 11631st |
| Roman numberals | ||
| Base 2 | 101000100001101101112 | 101000100010001101012 |
| Base 3 | 10202012110213 | 10202012222213 |
| Base 4 | 22020123134 | 22020203114 |
| Base 5 | 1322214315 | 1322224325 |
| Base 6 | 221220116 | 221223416 |
| Base 7 | 54335567 | 54341267 |
| Base 8 | 24206678 | 24210658 |
| Base 9 | 12217379 | 12218879 |
| Base 10 | 66399110 | 66411710 |
| Base 11 | 41395911 | 413a6311 |
| Base 12 | 28030712 | 2803b112 |
| Base 13 | 1a32c313 | 1a338c13 |
| Base 14 | 133d9d14 | 13404d14 |
| Base 15 | d1b1115 | d1b9715 |
| Base 16 | a21b716 | a223516 |