Compare 6439 vs 6449
| Property | 6439 | 6449 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 471 × 1371 | 64491 |
| Prime factorization | 47 × 137 | 6449 |
| Divisors count | 4 | 2 |
| Divisors | 1, 47, 137, 6439 | 1, 6449 |
| Number of properties | 1 | 6 |
| Additive primes | 421st | |
| Chen primes | 458th | |
| Primes | 837th | |
| Pythagorean primes | 411th | |
| Semiprimes | 1731st | |
| Sophie germain primes | 142nd | |
| Twin primes (1st member) | 150th | |
| Roman numberals | ||
| Base 2 | 11001001001112 | 11001001100012 |
| Base 3 | 222111113 | 222112123 |
| Base 4 | 12102134 | 12103014 |
| Base 5 | 2012245 | 2012445 |
| Base 6 | 454516 | 455056 |
| Base 7 | 245267 | 245427 |
| Base 8 | 144478 | 144618 |
| Base 9 | 87449 | 87559 |
| Base 10 | 643910 | 644910 |
| Base 11 | 492411 | 493311 |
| Base 12 | 388712 | 389512 |
| Base 13 | 2c1413 | 2c2113 |
| Base 14 | 24bd14 | 24c914 |
| Base 15 | 1d9415 | 1d9e15 |
| Base 16 | 192716 | 193116 |