Compare 640019 vs 642899
| Property | 640019 | 642899 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6400191 | 6428991 |
| Prime factorization | 640019 | 642899 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640019 | 1, 642899 |
| Number of properties | 4 | 4 |
| Chen primes | 20379th | |
| Isolated primes | 40814th | 40973rd |
| Primes | 52077th | 52282nd |
| Safe primes | 3016th | 3028th |
| Sophie germain primes | 5327th | |
| Roman numberals | ||
| Base 2 | 100111000100000100112 | 100111001111010100112 |
| Base 3 | 10121112211023 | 10121222200023 |
| Base 4 | 21301001034 | 21303311034 |
| Base 5 | 1304400345 | 1310330445 |
| Base 6 | 214150156 | 214402156 |
| Base 7 | 53036427 | 53152257 |
| Base 8 | 23420238 | 23475238 |
| Base 9 | 11748429 | 11788029 |
| Base 10 | 64001910 | 64289910 |
| Base 11 | 3a794611 | 3aa02411 |
| Base 12 | 26a46b12 | 27006b12 |
| Base 13 | 19541313 | 19681a13 |
| Base 14 | 12935914 | 12a41514 |
| Base 15 | c997e15 | ca74e15 |
| Base 16 | 9c41316 | 9cf5316 |