Compare 642977 vs 642989
| Property | 642977 | 642989 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6429771 | 6311 × 10191 |
| Prime factorization | 642977 | 631 × 1019 |
| Divisors count | 2 | 4 |
| Divisors | 1, 642977 | 1, 631, 1019, 642989 |
| Number of properties | 4 | 1 |
| Cousin primes (2nd member) | 5646th | |
| Isolated primes | 40980th | |
| Primes | 52289th | |
| Semiprimes | 137768th | |
| Super primes | 5345th | |
| Roman numberals | ||
| Base 2 | 100111001111101000012 | 100111001111101011012 |
| Base 3 | 10121222222223 | 10122000001023 |
| Base 4 | 21303322014 | 21303322314 |
| Base 5 | 1310334025 | 1310334245 |
| Base 6 | 214404256 | 214404456 |
| Base 7 | 53153667 | 53154147 |
| Base 8 | 23476418 | 23476558 |
| Base 9 | 11788889 | 11800129 |
| Base 10 | 64297710 | 64298910 |
| Base 11 | 3aa09511 | 3aa0a611 |
| Base 12 | 27011512 | 27012512 |
| Base 13 | 19687a13 | 19688913 |
| Base 14 | 12a46d14 | 12a47b14 |
| Base 15 | ca7a215 | ca7ae15 |
| Base 16 | 9cfa116 | 9cfad16 |