Compare 1578 vs 1583
| Property | 1578 | 1583 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 31 × 2631 | 15831 |
| Prime factorization | 2 × 3 × 263 | 1583 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 3, 6, 263, 526, 789, 1578 | 1, 1583 |
| Number of properties | 0 | 9 |
| Additive primes | 135th | |
| Chen primes | 159th | |
| Cousin primes (2nd member) | 56th | |
| Emirps | 76th | |
| Harmonic primes | 84th | |
| Isolated primes | 151st | |
| Long primes | 98th | |
| Primes | 250th | |
| Sophie germain primes | 53rd | |
| Roman numberals | MDLXXVIII | MDLXXXIII |
| Base 2 | 110001010102 | 110001011112 |
| Base 3 | 20111103 | 20111223 |
| Base 4 | 1202224 | 1202334 |
| Base 5 | 223035 | 223135 |
| Base 6 | 111506 | 111556 |
| Base 7 | 44137 | 44217 |
| Base 8 | 30528 | 30578 |
| Base 9 | 21439 | 21489 |
| Base 10 | 157810 | 158310 |
| Base 11 | 120511 | 120a11 |
| Base 12 | ab612 | abb12 |
| Base 13 | 94513 | 94a13 |
| Base 14 | 80a14 | 81114 |
| Base 15 | 70315 | 70815 |
| Base 16 | 62a16 | 62f16 |