Compare 642407 vs 642417
| Property | 642407 | 642417 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6424071 | 31 × 1971 × 10871 |
| Prime factorization | 642407 | 3 × 197 × 1087 |
| Divisors count | 2 | 8 |
| Divisors | 1, 642407 | 1, 3, 197, 591, 1087, 3261, 214139, 642417 |
| Number of properties | 6 | 0 |
| Additive primes | 20422nd | |
| Chen primes | 20437th | |
| Cousin primes (2nd member) | 5643rd | |
| Isolated primes | 40949th | |
| Primes | 52250th | |
| Safe primes | 3025th | |
| Roman numberals | ||
| Base 2 | 100111001101011001112 | 100111001101011100012 |
| Base 3 | 10121220122123 | 10121220200203 |
| Base 4 | 21303112134 | 21303113014 |
| Base 5 | 1310241125 | 1310241325 |
| Base 6 | 214340356 | 214340536 |
| Base 7 | 53136237 | 53136367 |
| Base 8 | 23465478 | 23465618 |
| Base 9 | 11781859 | 11782069 |
| Base 10 | 64240710 | 64241710 |
| Base 11 | 3a971711 | 3a972611 |
| Base 12 | 26b91b12 | 26b92912 |
| Base 13 | 19652c13 | 19653913 |
| Base 14 | 12a18314 | 12a18d14 |
| Base 15 | ca52215 | ca52c15 |
| Base 16 | 9cd6716 | 9cd7116 |