Compare 642623 vs 642739
| Property | 642623 | 642739 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6426231 | 6427391 |
| Prime factorization | 642623 | 642739 |
| Divisors count | 2 | 2 |
| Divisors | 1, 642623 | 1, 642739 |
| Number of properties | 5 | 4 |
| Additive primes | 20426th | 20429th |
| Isolated primes | 40961st | |
| Primes | 52264th | 52269th |
| Safe primes | 3026th | |
| Sophie germain primes | 5324th | |
| Twin primes (2nd member) | 5653rd | |
| Ulam primes | 3833rd | |
| Roman numberals | ||
| Base 2 | 100111001110001111112 | 100111001110101100112 |
| Base 3 | 10121221112123 | 10121222000113 |
| Base 4 | 21303203334 | 21303223034 |
| Base 5 | 1310304435 | 1310314245 |
| Base 6 | 214350356 | 214353516 |
| Base 7 | 53143527 | 53146067 |
| Base 8 | 23470778 | 23472638 |
| Base 9 | 11784559 | 11786049 |
| Base 10 | 64262310 | 64273910 |
| Base 11 | 3a98a311 | 3a999911 |
| Base 12 | 26ba7b12 | 26bb5712 |
| Base 13 | 19666713 | 19672613 |
| Base 14 | 12a29914 | 12a33d14 |
| Base 15 | ca61815 | ca69415 |
| Base 16 | 9ce3f16 | 9ceb316 |