Compare 642997 vs 643369
| Property | 642997 | 643369 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6429971 | 6433691 |
| Prime factorization | 642997 | 643369 |
| Divisors count | 2 | 2 |
| Divisors | 1, 642997 | 1, 643369 |
| Number of properties | 3 | 5 |
| Additive primes | 20437th | 20449th |
| Chen primes | 20461st | |
| Cousin primes (1st member) | 5650th | |
| Isolated primes | 40981st | 41003rd |
| Primes | 52290th | 52314th |
| Roman numberals | ||
| Base 2 | 100111001111101101012 | 100111010001001010012 |
| Base 3 | 10122000002013 | 10122001121113 |
| Base 4 | 21303323114 | 21310102214 |
| Base 5 | 1310334425 | 1310414345 |
| Base 6 | 214405016 | 214423216 |
| Base 7 | 53154257 | 53164667 |
| Base 8 | 23476658 | 23504518 |
| Base 9 | 11800219 | 11804749 |
| Base 10 | 64299710 | 64336910 |
| Base 11 | 3aa10311 | 3aa41111 |
| Base 12 | 27013112 | 2703a112 |
| Base 13 | 19689413 | 196abc13 |
| Base 14 | 12a48514 | 12a66d14 |
| Base 15 | ca7b715 | ca96415 |
| Base 16 | 9cfb516 | 9d12916 |