Compare 666989 vs 667013
| Property | 666989 | 667013 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6669891 | 6670131 |
| Prime factorization | 666989 | 667013 |
| Divisors count | 2 | 2 |
| Divisors | 1, 666989 | 1, 667013 |
| Number of properties | 4 | 6 |
| Additive primes | 21116th | |
| Centered square primes | 148th | |
| Chen primes | 21147th | 21148th |
| Isolated primes | 42418th | 42419th |
| Primes | 54095th | 54096th |
| Sexy primes (1st member) | 11672nd | |
| Sexy primes (2nd member) | 11671st | |
| Roman numberals | ||
| Base 2 | 101000101101011011012 | 101000101101100001012 |
| Base 3 | 10202122210223 | 10202122220123 |
| Base 4 | 22023112314 | 22023120114 |
| Base 5 | 1323204245 | 1323210235 |
| Base 6 | 221435256 | 221440056 |
| Base 7 | 54454017 | 54454347 |
| Base 8 | 24265558 | 24266058 |
| Base 9 | 12258389 | 12258659 |
| Base 10 | 66698910 | 66701310 |
| Base 11 | 41613411 | 41615611 |
| Base 12 | 281ba512 | 28200512 |
| Base 13 | 1a478b13 | 1a47a913 |
| Base 14 | 13510114 | 13511b14 |
| Base 15 | d295e15 | d297815 |
| Base 16 | a2d6d16 | a2d8516 |