Compare 639697 vs 640121
| Property | 639697 | 640121 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6396971 | 6401211 |
| Prime factorization | 639697 | 640121 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639697 | 1, 640121 |
| Number of properties | 5 | 4 |
| Chen primes | 20382nd | |
| Cousin primes (1st member) | 5628th | |
| Isolated primes | 40797th | 40823rd |
| Primes | 52054th | 52086th |
| Prime triplets (1st member) | 2061st | |
| Sexy primes (1st member) | 11281st | 11286th |
| Roman numberals | ||
| Base 2 | 100111000010110100012 | 100111000100011110012 |
| Base 3 | 10121111111113 | 10121120020123 |
| Base 4 | 21300231014 | 21301013214 |
| Base 5 | 1304322425 | 1304404415 |
| Base 6 | 214133216 | 214153056 |
| Base 7 | 53030027 | 53041467 |
| Base 8 | 23413218 | 23421718 |
| Base 9 | 11744449 | 11750659 |
| Base 10 | 63969710 | 64012110 |
| Base 11 | 3a768311 | 3a7a2911 |
| Base 12 | 26a24112 | 26a53512 |
| Base 13 | 19522613 | 19549113 |
| Base 14 | 1291a914 | 1293cd14 |
| Base 15 | c981715 | c99eb15 |
| Base 16 | 9c2d116 | 9c47916 |