Compare 642197 vs 642207
| Property | 642197 | 642207 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6421971 | 31 × 2140691 |
| Prime factorization | 642197 | 3 × 214069 |
| Divisors count | 2 | 4 |
| Divisors | 1, 642197 | 1, 3, 214069, 642207 |
| Number of properties | 4 | 1 |
| Additive primes | 20415th | |
| Chen primes | 20434th | |
| Primes | 52236th | |
| Semiprimes | 137596th | |
| Twin primes (1st member) | 5650th | |
| Roman numberals | ||
| Base 2 | 100111001100100101012 | 100111001100100111112 |
| Base 3 | 10121212210023 | 10121212211103 |
| Base 4 | 21303021114 | 21303021334 |
| Base 5 | 1310222425 | 1310223125 |
| Base 6 | 214330456 | 214331036 |
| Base 7 | 53132037 | 53132167 |
| Base 8 | 23462258 | 23462378 |
| Base 9 | 11778329 | 11778439 |
| Base 10 | 64219710 | 64220710 |
| Base 11 | 3a954611 | 3a955511 |
| Base 12 | 26b78512 | 26b79312 |
| Base 13 | 1963ca13 | 19640713 |
| Base 14 | 12a07314 | 12a07d14 |
| Base 15 | ca43215 | ca43c15 |
| Base 16 | 9cc9516 | 9cc9f16 |