Compare 1580 vs 1583
| Property | 1580 | 1583 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 51 × 791 | 15831 |
| Prime factorization | 2 × 2 × 5 × 79 | 1583 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580 | 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 | MDLXXX | MDLXXXIII |
| Base 2 | 110001011002 | 110001011112 |
| Base 3 | 20111123 | 20111223 |
| Base 4 | 1202304 | 1202334 |
| Base 5 | 223105 | 223135 |
| Base 6 | 111526 | 111556 |
| Base 7 | 44157 | 44217 |
| Base 8 | 30548 | 30578 |
| Base 9 | 21459 | 21489 |
| Base 10 | 158010 | 158310 |
| Base 11 | 120711 | 120a11 |
| Base 12 | ab812 | abb12 |
| Base 13 | 94713 | 94a13 |
| Base 14 | 80c14 | 81114 |
| Base 15 | 70515 | 70815 |
| Base 16 | 62c16 | 62f16 |