Compare 6421 vs 6428
| Property | 6421 | 6428 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 64211 | 22 × 16071 |
| Prime factorization | 6421 | 2 × 2 × 1607 |
| Divisors count | 2 | 6 |
| Divisors | 1, 6421 | 1, 2, 4, 1607, 3214, 6428 |
| Number of properties | 7 | 0 |
| Additive primes | 419th | |
| Chen primes | 456th | |
| Harmonic primes | 301st | |
| Isolated primes | 538th | |
| Primes | 835th | |
| Pythagorean primes | 410th | |
| Sexy primes (1st member) | 302nd | |
| Roman numberals | ||
| Base 2 | 11001000101012 | 11001000111002 |
| Base 3 | 222102113 | 222110023 |
| Base 4 | 12101114 | 12101304 |
| Base 5 | 2011415 | 2012035 |
| Base 6 | 454216 | 454326 |
| Base 7 | 245027 | 245127 |
| Base 8 | 144258 | 144348 |
| Base 9 | 87249 | 87329 |
| Base 10 | 642110 | 642810 |
| Base 11 | 490811 | 491411 |
| Base 12 | 387112 | 387812 |
| Base 13 | 2bcc13 | 2c0613 |
| Base 14 | 24a914 | 24b214 |
| Base 15 | 1d8115 | 1d8815 |
| Base 16 | 191516 | 191c16 |