Compare 640109 vs 640127
| Property | 640109 | 640127 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6401091 | 6401271 |
| Prime factorization | 640109 | 640127 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640109 | 1, 640127 |
| Number of properties | 3 | 4 |
| Chen primes | 20381st | |
| Isolated primes | 40822nd | 40824th |
| Primes | 52085th | 52087th |
| Safe primes | 3017th | |
| Sexy primes (2nd member) | 11286th | |
| Roman numberals | ||
| Base 2 | 100111000100011011012 | 100111000100011111112 |
| Base 3 | 10121120012023 | 10121120021023 |
| Base 4 | 21301012314 | 21301013334 |
| Base 5 | 1304404145 | 1304410025 |
| Base 6 | 214152456 | 214153156 |
| Base 7 | 53041317 | 53041557 |
| Base 8 | 23421558 | 23421778 |
| Base 9 | 11750529 | 11750729 |
| Base 10 | 64010910 | 64012710 |
| Base 11 | 3a7a1811 | 3a7a3411 |
| Base 12 | 26a52512 | 26a53b12 |
| Base 13 | 19548213 | 19549713 |
| Base 14 | 1293c114 | 1293d514 |
| Base 15 | c99de15 | c9a0215 |
| Base 16 | 9c46d16 | 9c47f16 |