Compare 640993 vs 641279
| Property | 640993 | 641279 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6409931 | 6412791 |
| Prime factorization | 640993 | 641279 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640993 | 1, 641279 |
| Number of properties | 3 | 4 |
| Additive primes | 20381st | 20389th |
| Chen primes | 20409th | |
| Isolated primes | 40876th | 40892nd |
| Primes | 52151st | 52169th |
| Roman numberals | ||
| Base 2 | 100111000111111000012 | 100111001000111111112 |
| Base 3 | 10121200211113 | 10121202000023 |
| Base 4 | 21301332014 | 21302033334 |
| Base 5 | 1310024335 | 1310101045 |
| Base 6 | 214233216 | 214245156 |
| Base 7 | 53065337 | 53104227 |
| Base 8 | 23437418 | 23443778 |
| Base 9 | 11762449 | 11766029 |
| Base 10 | 64099310 | 64127910 |
| Base 11 | 3a865111 | 3a889111 |
| Base 12 | 26ab4112 | 26b13b12 |
| Base 13 | 1959b213 | 195b7213 |
| Base 14 | 12985314 | 1299b914 |
| Base 15 | c9dcd15 | ca01e15 |
| Base 16 | 9c7e116 | 9c8ff16 |