Compare 488 vs 491
| Property | 488 | 491 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 23 × 611 | 4911 |
| Prime factorization | 2 × 2 × 2 × 61 | 491 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 4, 8, 61, 122, 244, 488 | 1, 491 |
| Number of properties | 0 | 7 |
| Chen primes | 66th | |
| Cousin primes (2nd member) | 26th | |
| Harmonic primes | 38th | |
| Isolated primes | 47th | |
| Long primes | 34th | |
| Primes | 94th | |
| Sophie germain primes | 25th | |
| Roman numberals | CDLXXXVIII | CDXCI |
| Base 2 | 1111010002 | 1111010112 |
| Base 3 | 2000023 | 2000123 |
| Base 4 | 132204 | 132234 |
| Base 5 | 34235 | 34315 |
| Base 6 | 21326 | 21356 |
| Base 7 | 12657 | 13017 |
| Base 8 | 7508 | 7538 |
| Base 9 | 6029 | 6059 |
| Base 10 | 48810 | 49110 |
| Base 11 | 40411 | 40711 |
| Base 12 | 34812 | 34b12 |
| Base 13 | 2b713 | 2ba13 |
| Base 14 | 26c14 | 27114 |
| Base 15 | 22815 | 22b15 |
| Base 16 | 1e816 | 1eb16 |