Compare 640295 vs 640307
| Property | 640295 | 640307 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 791 × 16211 | 6403071 |
| Prime factorization | 5 × 79 × 1621 | 640307 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 79, 395, 1621, 8105, 128059, 640295 | 1, 640307 |
| Number of properties | 0 | 5 |
| Chen primes | 20390th | |
| Cousin primes (2nd member) | 5634th | |
| Isolated primes | 40833rd | |
| Primes | 52104th | |
| Safe primes | 3019th | |
| Roman numberals | ||
| Base 2 | 100111000101001001112 | 100111000101001100112 |
| Base 3 | 10121120221223 | 10121121000023 |
| Base 4 | 21301102134 | 21301103034 |
| Base 5 | 1304421405 | 1304422125 |
| Base 6 | 214201556 | 214202156 |
| Base 7 | 53045157 | 53045337 |
| Base 8 | 23424478 | 23424638 |
| Base 9 | 11752789 | 11753029 |
| Base 10 | 64029510 | 64030710 |
| Base 11 | 3a807711 | 3a808811 |
| Base 12 | 26a65b12 | 26a66b12 |
| Base 13 | 19559613 | 1955a513 |
| Base 14 | 1294b514 | 1294c314 |
| Base 15 | c9ab515 | c9ac215 |
| Base 16 | 9c52716 | 9c53316 |