Compare 640993 vs 641131
| Property | 640993 | 641131 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6409931 | 6411311 |
| Prime factorization | 640993 | 641131 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640993 | 1, 641131 |
| Number of properties | 3 | 3 |
| Additive primes | 20381st | |
| Isolated primes | 40876th | |
| Primes | 52151st | 52160th |
| Twin primes (2nd member) | 5639th | |
| Ulam primes | 3824th | |
| Roman numberals | ||
| Base 2 | 100111000111111000012 | 100111001000011010112 |
| Base 3 | 10121200211113 | 10121201101213 |
| Base 4 | 21301332014 | 21302012234 |
| Base 5 | 1310024335 | 1310040115 |
| Base 6 | 214233216 | 214241116 |
| Base 7 | 53065337 | 53101217 |
| Base 8 | 23437418 | 23441538 |
| Base 9 | 11762449 | 11764179 |
| Base 10 | 64099310 | 64113110 |
| Base 11 | 3a865111 | 3a876711 |
| Base 12 | 26ab4112 | 26b03712 |
| Base 13 | 1959b213 | 195a8a13 |
| Base 14 | 12985314 | 12991114 |
| Base 15 | c9dcd15 | c9e7115 |
| Base 16 | 9c7e116 | 9c86b16 |