Compare 6487 vs 6491
| Property | 6487 | 6491 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 131 × 4991 | 64911 |
| Prime factorization | 13 × 499 | 6491 |
| Divisors count | 4 | 2 |
| Divisors | 1, 13, 499, 6487 | 1, 6491 |
| Number of properties | 1 | 4 |
| Chen primes | 460th | |
| Isolated primes | 543rd | |
| Primes | 842nd | |
| Semiprimes | 1743rd | |
| Sophie germain primes | 143rd | |
| Roman numberals | ||
| Base 2 | 11001010101112 | 11001010110112 |
| Base 3 | 222200213 | 222201023 |
| Base 4 | 12111134 | 12111234 |
| Base 5 | 2014225 | 2014315 |
| Base 6 | 500116 | 500156 |
| Base 7 | 246257 | 246327 |
| Base 8 | 145278 | 145338 |
| Base 9 | 88079 | 88129 |
| Base 10 | 648710 | 649110 |
| Base 11 | 496811 | 497111 |
| Base 12 | 390712 | 390b12 |
| Base 13 | 2c5013 | 2c5413 |
| Base 14 | 251514 | 251914 |
| Base 15 | 1dc715 | 1dcb15 |
| Base 16 | 195716 | 195b16 |