Compare 666989 vs 667241
| Property | 666989 | 667241 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6669891 | 6672411 |
| Prime factorization | 666989 | 667241 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666989 | 1, 667241 |
| Number of properties | 4 | 3 |
| Chen primes | 21147th | 21153rd |
| Isolated primes | 42418th | |
| Primes | 54095th | 54110th |
| Sexy primes (2nd member) | 11671st | |
| Twin primes (1st member) | 5842nd | |
| Roman numberals | ||
| Base 2 | 101000101101011011012 | 101000101110011010012 |
| Base 3 | 10202122210223 | 10202200211223 |
| Base 4 | 22023112314 | 22023212214 |
| Base 5 | 1323204245 | 1323224315 |
| Base 6 | 221435256 | 221450256 |
| Base 7 | 54454017 | 54462117 |
| Base 8 | 24265558 | 24271518 |
| Base 9 | 12258389 | 12262489 |
| Base 10 | 66698910 | 66724110 |
| Base 11 | 41613411 | 41634311 |
| Base 12 | 281ba512 | 28217512 |
| Base 13 | 1a478b13 | 1a492313 |
| Base 14 | 13510114 | 13524114 |
| Base 15 | d295e15 | d2a7b15 |
| Base 16 | a2d6d16 | a2e6916 |