Compare 640307 vs 640319
| Property | 640307 | 640319 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6403071 | 191 × 671 × 5031 |
| Prime factorization | 640307 | 19 × 67 × 503 |
| Divisors count | 2 | 8 |
| Divisors | 1, 640307 | 1, 19, 67, 503, 1273, 9557, 33701, 640319 |
| Number of properties | 5 | 0 |
| Chen primes | 20390th | |
| Cousin primes (2nd member) | 5634th | |
| Isolated primes | 40833rd | |
| Primes | 52104th | |
| Safe primes | 3019th | |
| Roman numberals | ||
| Base 2 | 100111000101001100112 | 100111000101001111112 |
| Base 3 | 10121121000023 | 10121121001123 |
| Base 4 | 21301103034 | 21301103334 |
| Base 5 | 1304422125 | 1304422345 |
| Base 6 | 214202156 | 214202356 |
| Base 7 | 53045337 | 53045517 |
| Base 8 | 23424638 | 23424778 |
| Base 9 | 11753029 | 11753159 |
| Base 10 | 64030710 | 64031910 |
| Base 11 | 3a808811 | 3a809911 |
| Base 12 | 26a66b12 | 26a67b12 |
| Base 13 | 1955a513 | 1955b413 |
| Base 14 | 1294c314 | 1294d114 |
| Base 15 | c9ac215 | c9ace15 |
| Base 16 | 9c53316 | 9c53f16 |