Compare 1021 vs 2017
| Property | 1021 | 2017 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 10211 | 20171 |
| Prime factorization | 1021 | 2017 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1021 | 1, 2017 |
| Number of properties | 8 | 7 |
| Chen primes | 187th | |
| Emirps | 38th | |
| Harmonic primes | 61st | |
| Isolated primes | 185th | |
| Long primes | 62nd | 117th |
| Lucky primes | 45th | |
| Primes | 172nd | 306th |
| Pythagorean primes | 83rd | 148th |
| Sexy primes (2nd member) | 130th | |
| Solinas primes | 46th | 54th |
| Twin primes (2nd member) | 36th | |
| Roman numberals | MXXI | MMXVII |
| Base 2 | 11111111012 | 111111000012 |
| Base 3 | 11012113 | 22022013 |
| Base 4 | 333314 | 1332014 |
| Base 5 | 130415 | 310325 |
| Base 6 | 44216 | 132016 |
| Base 7 | 26567 | 56117 |
| Base 8 | 17758 | 37418 |
| Base 9 | 13549 | 26819 |
| Base 10 | 102110 | 201710 |
| Base 11 | 84911 | 157411 |
| Base 12 | 71112 | 120112 |
| Base 13 | 60713 | bc213 |
| Base 14 | 52d14 | a4114 |
| Base 15 | 48115 | 8e715 |
| Base 16 | 3fd16 | 7e116 |