Compare 1021 vs 1030
| Property | 1021 | 1030 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 10211 | 21 × 51 × 1031 |
| Prime factorization | 1021 | 2 × 5 × 103 |
| Divisors count | 2 | 8 |
| Divisors | 1, 1021 | 1, 2, 5, 10, 103, 206, 515, 1030 |
| Number of properties | 8 | 0 |
| Emirps | 38th | |
| Harmonic primes | 61st | |
| Long primes | 62nd | |
| Lucky primes | 45th | |
| Primes | 172nd | |
| Pythagorean primes | 83rd | |
| Solinas primes | 46th | |
| Twin primes (2nd member) | 36th | |
| Roman numberals | MXXI | MXXX |
| Base 2 | 11111111012 | 100000001102 |
| Base 3 | 11012113 | 11020113 |
| Base 4 | 333314 | 1000124 |
| Base 5 | 130415 | 131105 |
| Base 6 | 44216 | 44346 |
| Base 7 | 26567 | 30017 |
| Base 8 | 17758 | 20068 |
| Base 9 | 13549 | 13649 |
| Base 10 | 102110 | 103010 |
| Base 11 | 84911 | 85711 |
| Base 12 | 71112 | 71a12 |
| Base 13 | 60713 | 61313 |
| Base 14 | 52d14 | 53814 |
| Base 15 | 48115 | 48a15 |
| Base 16 | 3fd16 | 40616 |