Compare 639845 vs 639851
| Property | 639845 | 639851 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 731 × 17531 | 6398511 |
| Prime factorization | 5 × 73 × 1753 | 639851 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 73, 365, 1753, 8765, 127969, 639845 | 1, 639851 |
| Number of properties | 0 | 6 |
| Chen primes | 20371st | |
| Primes | 52064th | |
| Prime triplets (1st member) | 2062nd | |
| Sexy primes (1st member) | 11284th | |
| Sophie germain primes | 5305th | |
| Twin primes (1st member) | 5631st | |
| Roman numberals | ||
| Base 2 | 100111000011011001012 | 100111000011011010112 |
| Base 3 | 10121112002223 | 10121112010123 |
| Base 4 | 21300312114 | 21300312234 |
| Base 5 | 1304333405 | 1304334015 |
| Base 6 | 214141256 | 214141356 |
| Base 7 | 53033037 | 53033127 |
| Base 8 | 23415458 | 23415538 |
| Base 9 | 11746289 | 11746359 |
| Base 10 | 63984510 | 63985110 |
| Base 11 | 3a77a811 | 3a780311 |
| Base 12 | 26a34512 | 26a34b12 |
| Base 13 | 19530b13 | 19531413 |
| Base 14 | 12927314 | 12927914 |
| Base 15 | c98b515 | c98bb15 |
| Base 16 | 9c36516 | 9c36b16 |