Compare 1021 vs 1181
| Property | 1021 | 1181 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 10211 | 11811 |
| Prime factorization | 1021 | 1181 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1021 | 1, 1181 |
| Number of properties | 8 | 10 |
| Additive primes | 104th | |
| Dihedral primes | 6th | |
| Emirps | 38th | 49th |
| Harmonic primes | 61st | 68th |
| Isolated primes | 113th | |
| Long primes | 62nd | 74th |
| Lucky primes | 45th | |
| Primes | 172nd | 194th |
| Pythagorean primes | 83rd | 94th |
| Sexy primes (1st member) | 84th | |
| Sexy prime triplets (1st member) | 32nd | |
| Solinas primes | 46th | |
| Twin primes (2nd member) | 36th | |
| Roman numberals | MXXI | MCLXXXI |
| Base 2 | 11111111012 | 100100111012 |
| Base 3 | 11012113 | 11212023 |
| Base 4 | 333314 | 1021314 |
| Base 5 | 130415 | 142115 |
| Base 6 | 44216 | 52456 |
| Base 7 | 26567 | 33057 |
| Base 8 | 17758 | 22358 |
| Base 9 | 13549 | 15529 |
| Base 10 | 102110 | 118110 |
| Base 11 | 84911 | 98411 |
| Base 12 | 71112 | 82512 |
| Base 13 | 60713 | 6cb13 |
| Base 14 | 52d14 | 60514 |
| Base 15 | 48115 | 53b15 |
| Base 16 | 3fd16 | 49d16 |