Compare 640247 vs 641747
| Property | 640247 | 641747 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6402471 | 6417471 |
| Prime factorization | 640247 | 641747 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640247 | 1, 641747 |
| Number of properties | 5 | 6 |
| Additive primes | 20362nd | 20403rd |
| Chen primes | 20388th | 20422nd |
| Happy primes | 7432nd | |
| Primes | 52097th | 52199th |
| Twin primes (1st member) | 5635th | 5644th |
| Ulam primes | 3818th | 3827th |
| Roman numberals | ||
| Base 2 | 100111000100111101112 | 100111001010110100112 |
| Base 3 | 10121120202123 | 10121210221023 |
| Base 4 | 21301033134 | 21302231034 |
| Base 5 | 1304414425 | 1310134425 |
| Base 6 | 214200356 | 214310156 |
| Base 7 | 53044167 | 53116617 |
| Base 8 | 23423678 | 23453238 |
| Base 9 | 11752259 | 11772729 |
| Base 10 | 64024710 | 64174710 |
| Base 11 | 3a803311 | 3a917711 |
| Base 12 | 26a61b12 | 26b46b12 |
| Base 13 | 19555a13 | 19614213 |
| Base 14 | 12947d14 | 129c3114 |
| Base 15 | c9a8215 | ca23215 |
| Base 16 | 9c4f716 | 9cad316 |