Compare 661993 vs 664117
| Property | 661993 | 664117 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6619931 | 6641171 |
| Prime factorization | 661993 | 664117 |
| Divisors count | 2 | 2 |
| Divisors | 1, 661993 | 1, 664117 |
| Number of properties | 5 | 7 |
| Cousin primes (1st member) | 5810th | |
| Happy primes | 7638th | |
| Isolated primes | 42128th | 42246th |
| Lucky primes | 6152nd | 6164th |
| Primes | 53717th | 53877th |
| Prime triplets (1st member) | 2119th | |
| Sexy primes (1st member) | 11631st | |
| Sexy primes (2nd member) | 11599th | |
| Super primes | 5474th | |
| Roman numberals | ||
| Base 2 | 101000011001111010012 | 101000100010001101012 |
| Base 3 | 10201220020213 | 10202012222213 |
| Base 4 | 22012132214 | 22020203114 |
| Base 5 | 1321404335 | 1322224325 |
| Base 6 | 221044416 | 221223416 |
| Base 7 | 54250037 | 54341267 |
| Base 8 | 24147518 | 24210658 |
| Base 9 | 12180679 | 12218879 |
| Base 10 | 66199310 | 66411710 |
| Base 11 | 41240211 | 413a6311 |
| Base 12 | 27b12112 | 2803b112 |
| Base 13 | 1a241713 | 1a338c13 |
| Base 14 | 13337314 | 13404d14 |
| Base 15 | d122d15 | d1b9715 |
| Base 16 | a19e916 | a223516 |