Compare 642997 vs 643213
| Property | 642997 | 643213 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6429971 | 6432131 |
| Prime factorization | 642997 | 643213 |
| Divisors count | 2 | 2 |
| Divisors | 1, 642997 | 1, 643213 |
| Number of properties | 3 | 4 |
| Additive primes | 20437th | 20444th |
| Cousin primes (1st member) | 5649th | |
| Isolated primes | 40981st | 40998th |
| Primes | 52290th | 52307th |
| Roman numberals | ||
| Base 2 | 100111001111101101012 | 100111010000100011012 |
| Base 3 | 10122000002013 | 10122000222013 |
| Base 4 | 21303323114 | 21310020314 |
| Base 5 | 1310334425 | 1310403235 |
| Base 6 | 214405016 | 214415016 |
| Base 7 | 53154257 | 53161547 |
| Base 8 | 23476658 | 23502158 |
| Base 9 | 11800219 | 11802819 |
| Base 10 | 64299710 | 64321310 |
| Base 11 | 3aa10311 | 3aa28a11 |
| Base 12 | 27013112 | 27029112 |
| Base 13 | 19689413 | 1969cc13 |
| Base 14 | 12a48514 | 12a59b14 |
| Base 15 | ca7b715 | ca8ad15 |
| Base 16 | 9cfb516 | 9d08d16 |