Compare 521 vs 1019
| Property | 521 | 1019 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 5211 | 10191 |
| Prime factorization | 521 | 1019 |
| Divisors count | 2 | 2 |
| Divisors | 1, 521 | 1, 1019 |
| Number of properties | 6 | 9 |
| Additive primes | 91st | |
| Chen primes | 70th | 117th |
| Long primes | 61st | |
| Lucas primes | 8th | |
| Primes | 98th | 171st |
| Pythagorean primes | 46th | |
| Safe primes | 26th | |
| Sexy primes (2nd member) | 75th | |
| Solinas primes | 39th | 45th |
| Sophie germain primes | 39th | |
| Twin primes (1st member) | 25th | 36th |
| Roman numberals | DXXI | MXIX |
| Base 2 | 10000010012 | 11111110112 |
| Base 3 | 2010223 | 11012023 |
| Base 4 | 200214 | 333234 |
| Base 5 | 40415 | 130345 |
| Base 6 | 22256 | 44156 |
| Base 7 | 13437 | 26547 |
| Base 8 | 10118 | 17738 |
| Base 9 | 6389 | 13529 |
| Base 10 | 52110 | 101910 |
| Base 11 | 43411 | 84711 |
| Base 12 | 37512 | 70b12 |
| Base 13 | 31113 | 60513 |
| Base 14 | 29314 | 52b14 |
| Base 15 | 24b15 | 47e15 |
| Base 16 | 20916 | 3fb16 |