Compare 642043 vs 642049
| Property | 642043 | 642049 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 971 × 66191 | 6420491 |
| Prime factorization | 97 × 6619 | 642049 |
| Divisors count | 4 | 2 |
| Divisors | 1, 97, 6619, 642043 | 1, 642049 |
| Number of properties | 1 | 3 |
| Isolated primes | 40932nd | |
| Primes | 52225th | |
| Proth primes | 195th | |
| Semiprimes | 137561st | |
| Roman numberals | ||
| Base 2 | 100111001011111110112 | 100111001100000000012 |
| Base 3 | 10121212011013 | 10121212011213 |
| Base 4 | 21302333234 | 21303000014 |
| Base 5 | 1310211335 | 1310211445 |
| Base 6 | 214322316 | 214322416 |
| Base 7 | 53125637 | 53126027 |
| Base 8 | 23457738 | 23460018 |
| Base 9 | 11776419 | 11776479 |
| Base 10 | 64204310 | 64204910 |
| Base 11 | 3a941611 | 3a942111 |
| Base 12 | 26b67712 | 26b68112 |
| Base 13 | 19630c13 | 19631513 |
| Base 14 | 129da314 | 129da914 |
| Base 15 | ca37d15 | ca38415 |
| Base 16 | 9cbfb16 | 9cc0116 |