Compare 642187 vs 642197
| Property | 642187 | 642197 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 71 × 131 × 70571 | 6421971 |
| Prime factorization | 7 × 13 × 7057 | 642197 |
| Divisors count | 8 | 2 |
| Divisors | 1, 7, 13, 91, 7057, 49399, 91741, 642187 | 1, 642197 |
| Number of properties | 0 | 4 |
| Additive primes | 20415th | |
| Chen primes | 20434th | |
| Primes | 52236th | |
| Twin primes (1st member) | 5650th | |
| Roman numberals | ||
| Base 2 | 100111001100100010112 | 100111001100100101012 |
| Base 3 | 10121212202013 | 10121212210023 |
| Base 4 | 21303020234 | 21303021114 |
| Base 5 | 1310222225 | 1310222425 |
| Base 6 | 214330316 | 214330456 |
| Base 7 | 53131607 | 53132037 |
| Base 8 | 23462138 | 23462258 |
| Base 9 | 11778219 | 11778329 |
| Base 10 | 64218710 | 64219710 |
| Base 11 | 3a953711 | 3a954611 |
| Base 12 | 26b77712 | 26b78512 |
| Base 13 | 1963c013 | 1963ca13 |
| Base 14 | 12a06714 | 12a07314 |
| Base 15 | ca42715 | ca43215 |
| Base 16 | 9cc8b16 | 9cc9516 |