Compare 1583 vs 1587
| Property | 1583 | 1587 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 15831 | 31 × 232 |
| Prime factorization | 1583 | 3 × 23 × 23 |
| Divisors count | 2 | 6 |
| Divisors | 1, 1583 | 1, 3, 23, 69, 529, 1587 |
| Number of properties | 9 | 0 |
| 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 | MDLXXXIII | MDLXXXVII |
| Base 2 | 110001011112 | 110001100112 |
| Base 3 | 20111223 | 20112103 |
| Base 4 | 1202334 | 1203034 |
| Base 5 | 223135 | 223225 |
| Base 6 | 111556 | 112036 |
| Base 7 | 44217 | 44257 |
| Base 8 | 30578 | 30638 |
| Base 9 | 21489 | 21539 |
| Base 10 | 158310 | 158710 |
| Base 11 | 120a11 | 121311 |
| Base 12 | abb12 | b0312 |
| Base 13 | 94a13 | 95113 |
| Base 14 | 81114 | 81514 |
| Base 15 | 70815 | 70c15 |
| Base 16 | 62f16 | 63316 |