Compare 642149 vs 643847
| Property | 642149 | 643847 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6421491 | 6438471 |
| Prime factorization | 642149 | 643847 |
| Divisors count | 2 | 2 |
| Divisors | 1, 642149 | 1, 643847 |
| Number of properties | 3 | 5 |
| Chen primes | 20432nd | 20473rd |
| Good primes | 1997th | |
| Happy primes | 7443rd | |
| Primes | 52232nd | 52347th |
| Twin primes (1st member) | 5649th | 5659th |
| Roman numberals | ||
| Base 2 | 100111001100011001012 | 100111010011000001112 |
| Base 3 | 10121212120223 | 10122010120123 |
| Base 4 | 21303012114 | 21310300134 |
| Base 5 | 1310220445 | 1311003425 |
| Base 6 | 214325256 | 214444356 |
| Base 7 | 53131047 | 53210517 |
| Base 8 | 23461458 | 23514078 |
| Base 9 | 11777689 | 11811659 |
| Base 10 | 64214910 | 64384710 |
| Base 11 | 3a950211 | 3aa80611 |
| Base 12 | 26b74512 | 27071b12 |
| Base 13 | 19639113 | 19709913 |
| Base 14 | 12a03b14 | 12a8d114 |
| Base 15 | ca3ee15 | cab8215 |
| Base 16 | 9cc6516 | 9d30716 |