Compare 642144 vs 642151
| Property | 642144 | 642151 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 25 × 31 × 66891 | 6421511 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 3 × 6689 | 642151 |
| Divisors count | 24 | 2 |
| Divisors | 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 6689, 13378, 20067, 26756, 40134, 53512, 80268, 107024, 160536, 214048, 321072, 642144 | 1, 642151 |
| Number of properties | 0 | 6 |
| Additive primes | 20414th | |
| Chen primes | 20433rd | |
| Primes | 52233rd | |
| Sexy primes (1st member) | 11316th | |
| Sexy prime triplets (1st member) | 2075th | |
| Twin primes (2nd member) | 5649th | |
| Roman numberals | ||
| Base 2 | 100111001100011000002 | 100111001100011001112 |
| Base 3 | 10121212120103 | 10121212121013 |
| Base 4 | 21303012004 | 21303012134 |
| Base 5 | 1310220345 | 1310221015 |
| Base 6 | 214325206 | 214325316 |
| Base 7 | 53130667 | 53131067 |
| Base 8 | 23461408 | 23461478 |
| Base 9 | 11777639 | 11777719 |
| Base 10 | 64214410 | 64215110 |
| Base 11 | 3a94a811 | 3a950411 |
| Base 12 | 26b74012 | 26b74712 |
| Base 13 | 19638913 | 19639313 |
| Base 14 | 12a03614 | 12a03d14 |
| Base 15 | ca3e915 | ca40115 |
| Base 16 | 9cc6016 | 9cc6716 |