Compare 642809 vs 642813
| Property | 642809 | 642813 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6428091 | 31 × 3531 × 6071 |
| Prime factorization | 642809 | 3 × 353 × 607 |
| Divisors count | 2 | 8 |
| Divisors | 1, 642809 | 1, 3, 353, 607, 1059, 1821, 214271, 642813 |
| Number of properties | 4 | 0 |
| Additive primes | 20432nd | |
| Isolated primes | 40968th | |
| Primes | 52275th | |
| Sophie germain primes | 5325th | |
| Roman numberals | ||
| Base 2 | 100111001110111110012 | 100111001110111111012 |
| Base 3 | 10121222022023 | 10121222022203 |
| Base 4 | 21303233214 | 21303233314 |
| Base 5 | 1310322145 | 1310322235 |
| Base 6 | 214355456 | 214355536 |
| Base 7 | 53150367 | 53150437 |
| Base 8 | 23473718 | 23473758 |
| Base 9 | 11786829 | 11786869 |
| Base 10 | 64280910 | 64281310 |
| Base 11 | 3a9a5211 | 3a9a5611 |
| Base 12 | 26bbb512 | 26bbb912 |
| Base 13 | 19677b13 | 19678213 |
| Base 14 | 12a38d14 | 12a39314 |
| Base 15 | ca6de15 | ca6e315 |
| Base 16 | 9cef916 | 9cefd16 |