Compare 640851 vs 640853
| Property | 640851 | 640853 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 191 × 112431 | 6408531 |
| Prime factorization | 3 × 19 × 11243 | 640853 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 19, 57, 11243, 33729, 213617, 640851 | 1, 640853 |
| Number of properties | 0 | 6 |
| Isolated primes | 40862nd | |
| Primes | 52137th | |
| Sexy primes (1st member) | 11297th | |
| Sexy primes (2nd member) | 11296th | |
| Sexy prime triplets (2nd member) | 2072nd | |
| Ulam primes | 3820th | |
| Roman numberals | ||
| Base 2 | 100111000111010100112 | 100111000111010101012 |
| Base 3 | 10121200020203 | 10121200020223 |
| Base 4 | 21301311034 | 21301311114 |
| Base 5 | 1310014015 | 1310014035 |
| Base 6 | 214225236 | 214225256 |
| Base 7 | 53062417 | 53062437 |
| Base 8 | 23435238 | 23435258 |
| Base 9 | 11760669 | 11760689 |
| Base 10 | 64085110 | 64085310 |
| Base 11 | 3a853211 | 3a853411 |
| Base 12 | 26aa4312 | 26aa4512 |
| Base 13 | 19590313 | 19590513 |
| Base 14 | 12979114 | 12979314 |
| Base 15 | c9d3615 | c9d3815 |
| Base 16 | 9c75316 | 9c75516 |