Compare 640669 vs 640859
| Property | 640669 | 640859 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6406691 | 6408591 |
| Prime factorization | 640669 | 640859 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640669 | 1, 640859 |
| Number of properties | 6 | 5 |
| Additive primes | 20372nd | |
| Chen primes | 20396th | 20402nd |
| Isolated primes | 40863rd | |
| Primes | 52126th | 52138th |
| Prime triplets (3rd member) | 2063rd | |
| Sexy primes (2nd member) | 11293rd | 11297th |
| Sexy prime triplets (3rd member) | 2072nd | |
| Twin primes (2nd member) | 5638th | |
| Roman numberals | ||
| Base 2 | 100111000110100111012 | 100111000111010110112 |
| Base 3 | 10121122111113 | 10121200021123 |
| Base 4 | 21301221314 | 21301311234 |
| Base 5 | 1310001345 | 1310014145 |
| Base 6 | 214220216 | 214225356 |
| Base 7 | 53055617 | 53062527 |
| Base 8 | 23432358 | 23435338 |
| Base 9 | 11757449 | 11760759 |
| Base 10 | 64066910 | 64085910 |
| Base 11 | 3a838711 | 3a853a11 |
| Base 12 | 26a91112 | 26aa4b12 |
| Base 13 | 1957c313 | 19590b13 |
| Base 14 | 1296a114 | 12979914 |
| Base 15 | c9c6415 | c9d3e15 |
| Base 16 | 9c69d16 | 9c75b16 |