Compare 642049 vs 667649
| Property | 642049 | 667649 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6420491 | 6676491 |
| Prime factorization | 642049 | 667649 |
| Divisors count | 2 | 2 |
| Divisors | 1, 642049 | 1, 667649 |
| Number of properties | 3 | 5 |
| Chen primes | 21164th | |
| Isolated primes | 40932nd | 42451st |
| Primes | 52225th | 54142nd |
| Proth primes | 195th | 199th |
| Sexy primes (2nd member) | 11680th | |
| Roman numberals | ||
| Base 2 | 100111001100000000012 | 101000110000000000012 |
| Base 3 | 10121212011213 | 10202202112023 |
| Base 4 | 21303000014 | 22030000014 |
| Base 5 | 1310211445 | 1323310445 |
| Base 6 | 214322416 | 221505456 |
| Base 7 | 53126027 | 54503337 |
| Base 8 | 23460018 | 24300018 |
| Base 9 | 11776479 | 12267529 |
| Base 10 | 64204910 | 66764910 |
| Base 11 | 3a942111 | 41668411 |
| Base 12 | 26b68112 | 28245512 |
| Base 13 | 19631513 | 1a4b7813 |
| Base 14 | 129da914 | 13545314 |
| Base 15 | ca38415 | d2c4e15 |
| Base 16 | 9cc0116 | a300116 |