Compare 640851 vs 640859
| Property | 640851 | 640859 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 191 × 112431 | 6408591 |
| Prime factorization | 3 × 19 × 11243 | 640859 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 19, 57, 11243, 33729, 213617, 640851 | 1, 640859 |
| Number of properties | 0 | 5 |
| Chen primes | 20402nd | |
| Isolated primes | 40863rd | |
| Primes | 52138th | |
| Sexy primes (2nd member) | 11297th | |
| Sexy prime triplets (3rd member) | 2072nd | |
| Roman numberals | ||
| Base 2 | 100111000111010100112 | 100111000111010110112 |
| Base 3 | 10121200020203 | 10121200021123 |
| Base 4 | 21301311034 | 21301311234 |
| Base 5 | 1310014015 | 1310014145 |
| Base 6 | 214225236 | 214225356 |
| Base 7 | 53062417 | 53062527 |
| Base 8 | 23435238 | 23435338 |
| Base 9 | 11760669 | 11760759 |
| Base 10 | 64085110 | 64085910 |
| Base 11 | 3a853211 | 3a853a11 |
| Base 12 | 26aa4312 | 26aa4b12 |
| Base 13 | 19590313 | 19590b13 |
| Base 14 | 12979114 | 12979914 |
| Base 15 | c9d3615 | c9d3e15 |
| Base 16 | 9c75316 | 9c75b16 |