Compare 640109 vs 640121
| Property | 640109 | 640121 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6401091 | 6401211 |
| Prime factorization | 640109 | 640121 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640109 | 1, 640121 |
| Number of properties | 3 | 4 |
| Chen primes | 20381st | 20382nd |
| Isolated primes | 40822nd | 40823rd |
| Primes | 52085th | 52086th |
| Sexy primes (1st member) | 11286th | |
| Roman numberals | ||
| Base 2 | 100111000100011011012 | 100111000100011110012 |
| Base 3 | 10121120012023 | 10121120020123 |
| Base 4 | 21301012314 | 21301013214 |
| Base 5 | 1304404145 | 1304404415 |
| Base 6 | 214152456 | 214153056 |
| Base 7 | 53041317 | 53041467 |
| Base 8 | 23421558 | 23421718 |
| Base 9 | 11750529 | 11750659 |
| Base 10 | 64010910 | 64012110 |
| Base 11 | 3a7a1811 | 3a7a2911 |
| Base 12 | 26a52512 | 26a53512 |
| Base 13 | 19548213 | 19549113 |
| Base 14 | 1293c114 | 1293cd14 |
| Base 15 | c99de15 | c99eb15 |
| Base 16 | 9c46d16 | 9c47916 |