Compare 9899 vs 9901
| Property | 9899 | 9901 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 191 × 5211 | 99011 |
| Prime factorization | 19 × 521 | 9901 |
| Divisors count | 4 | 2 |
| Divisors | 1, 19, 521, 9899 | 1, 9901 |
| Number of properties | 1 | 7 |
| Additive primes | 585th | |
| Centered decagonal primes | 26th | |
| Chen primes | 630th | |
| Isolated primes | 814th | |
| Primes | 1221st | |
| Pythagorean primes | 605th | |
| Semiprimes | 2593rd | |
| Sexy primes (1st member) | 409th | |
| Roman numberals | ||
| Base 2 | 100110101010112 | 100110101011012 |
| Base 3 | 1111201223 | 1111202013 |
| Base 4 | 21222234 | 21222314 |
| Base 5 | 3040445 | 3041015 |
| Base 6 | 1134556 | 1135016 |
| Base 7 | 406017 | 406037 |
| Base 8 | 232538 | 232558 |
| Base 9 | 145189 | 145219 |
| Base 10 | 989910 | 990110 |
| Base 11 | 748a11 | 749111 |
| Base 12 | 588b12 | 589112 |
| Base 13 | 467613 | 467813 |
| Base 14 | 387114 | 387314 |
| Base 15 | 2dee15 | 2e0115 |
| Base 16 | 26ab16 | 26ad16 |