Compare 666989 vs 667309
| Property | 666989 | 667309 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6669891 | 6673091 |
| Prime factorization | 666989 | 667309 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666989 | 1, 667309 |
| Number of properties | 4 | 4 |
| Additive primes | 21125th | |
| Chen primes | 21147th | 21154th |
| Isolated primes | 42418th | 42431st |
| Primes | 54095th | 54114th |
| Sexy primes (2nd member) | 11671st | |
| Roman numberals | ||
| Base 2 | 101000101101011011012 | 101000101110101011012 |
| Base 3 | 10202122210223 | 10202201010113 |
| Base 4 | 22023112314 | 22023222314 |
| Base 5 | 1323204245 | 1323232145 |
| Base 6 | 221435256 | 221452216 |
| Base 7 | 54454017 | 54463367 |
| Base 8 | 24265558 | 24272558 |
| Base 9 | 12258389 | 12263349 |
| Base 10 | 66698910 | 66730910 |
| Base 11 | 41613411 | 4163a511 |
| Base 12 | 281ba512 | 28221112 |
| Base 13 | 1a478b13 | 1a497613 |
| Base 14 | 13510114 | 13528d14 |
| Base 15 | d295e15 | d2ac415 |
| Base 16 | a2d6d16 | a2ead16 |