Compare 640993 vs 641005
| Property | 640993 | 641005 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6409931 | 51 × 1282011 |
| Prime factorization | 640993 | 5 × 128201 |
| Divisors count | 2 | 4 |
| Divisors | 1, 640993 | 1, 5, 128201, 641005 |
| Number of properties | 3 | 1 |
| Additive primes | 20381st | |
| Isolated primes | 40876th | |
| Primes | 52151st | |
| Semiprimes | 137350th | |
| Roman numberals | ||
| Base 2 | 100111000111111000012 | 100111000111111011012 |
| Base 3 | 10121200211113 | 10121200212213 |
| Base 4 | 21301332014 | 21301332314 |
| Base 5 | 1310024335 | 1310030105 |
| Base 6 | 214233216 | 214233416 |
| Base 7 | 53065337 | 53065517 |
| Base 8 | 23437418 | 23437558 |
| Base 9 | 11762449 | 11762579 |
| Base 10 | 64099310 | 64100510 |
| Base 11 | 3a865111 | 3a866211 |
| Base 12 | 26ab4112 | 26ab5112 |
| Base 13 | 1959b213 | 1959c113 |
| Base 14 | 12985314 | 12986114 |
| Base 15 | c9dcd15 | c9dda15 |
| Base 16 | 9c7e116 | 9c7ed16 |