Compare 1021 vs 1151
| Property | 1021 | 1151 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 10211 | 11511 |
| Prime factorization | 1021 | 1151 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1021 | 1, 1151 |
| Number of properties | 8 | 10 |
| Chen primes | 126th | |
| Class 1+ primes | 20th | |
| Emirps | 38th | 47th |
| Good primes | 48th | |
| Happy primes | 40th | |
| Harmonic primes | 61st | |
| Long primes | 62nd | |
| Lucky primes | 45th | |
| Multiplicative primes | 15th | |
| Pierpont primes of the 2nd kind | 20th | |
| Primes | 172nd | 190th |
| Pythagorean primes | 83rd | |
| Solinas primes | 46th | 51st |
| Twin primes (1st member) | 41st | |
| Twin primes (2nd member) | 36th | |
| Roman numberals | MXXI | MCLI |
| Base 2 | 11111111012 | 100011111112 |
| Base 3 | 11012113 | 11201223 |
| Base 4 | 333314 | 1013334 |
| Base 5 | 130415 | 141015 |
| Base 6 | 44216 | 51556 |
| Base 7 | 26567 | 32337 |
| Base 8 | 17758 | 21778 |
| Base 9 | 13549 | 15189 |
| Base 10 | 102110 | 115110 |
| Base 11 | 84911 | 95711 |
| Base 12 | 71112 | 7bb12 |
| Base 13 | 60713 | 6a713 |
| Base 14 | 52d14 | 5c314 |
| Base 15 | 48115 | 51b15 |
| Base 16 | 3fd16 | 47f16 |