Compare 640019 vs 640109
| Property | 640019 | 640109 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6400191 | 6401091 |
| Prime factorization | 640019 | 640109 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640019 | 1, 640109 |
| Number of properties | 4 | 3 |
| Chen primes | 20379th | 20381st |
| Isolated primes | 40814th | 40822nd |
| Primes | 52077th | 52085th |
| Safe primes | 3016th | |
| Roman numberals | ||
| Base 2 | 100111000100000100112 | 100111000100011011012 |
| Base 3 | 10121112211023 | 10121120012023 |
| Base 4 | 21301001034 | 21301012314 |
| Base 5 | 1304400345 | 1304404145 |
| Base 6 | 214150156 | 214152456 |
| Base 7 | 53036427 | 53041317 |
| Base 8 | 23420238 | 23421558 |
| Base 9 | 11748429 | 11750529 |
| Base 10 | 64001910 | 64010910 |
| Base 11 | 3a794611 | 3a7a1811 |
| Base 12 | 26a46b12 | 26a52512 |
| Base 13 | 19541313 | 19548213 |
| Base 14 | 12935914 | 1293c114 |
| Base 15 | c997e15 | c99de15 |
| Base 16 | 9c41316 | 9c46d16 |