Compare 1021 vs 1021
| Property | 1021 | 1021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 10211 | 10211 |
| Prime factorization | 1021 | 1021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1021 | 1, 1021 |
| Number of properties | 8 | 8 |
| Emirps | 38th | 38th |
| Harmonic primes | 61st | 61st |
| Long primes | 62nd | 62nd |
| Lucky primes | 45th | 45th |
| Primes | 172nd | 172nd |
| Pythagorean primes | 83rd | 83rd |
| Solinas primes | 46th | 46th |
| Twin primes (2nd member) | 36th | 36th |
| Roman numberals | MXXI | MXXI |
| Base 2 | 11111111012 | 11111111012 |
| Base 3 | 11012113 | 11012113 |
| Base 4 | 333314 | 333314 |
| Base 5 | 130415 | 130415 |
| Base 6 | 44216 | 44216 |
| Base 7 | 26567 | 26567 |
| Base 8 | 17758 | 17758 |
| Base 9 | 13549 | 13549 |
| Base 10 | 102110 | 102110 |
| Base 11 | 84911 | 84911 |
| Base 12 | 71112 | 71112 |
| Base 13 | 60713 | 60713 |
| Base 14 | 52d14 | 52d14 |
| Base 15 | 48115 | 48115 |
| Base 16 | 3fd16 | 3fd16 |