Compare 9901 vs 9902
| Property | 9901 | 9902 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 99011 | 21 × 49511 |
| Prime factorization | 9901 | 2 × 4951 |
| Divisors count | 2 | 4 |
| Divisors | 1, 9901 | 1, 2, 4951, 9902 |
| Number of properties | 7 | 1 |
| Additive primes | 585th | |
| Centered decagonal primes | 26th | |
| Chen primes | 630th | |
| Isolated primes | 814th | |
| Primes | 1221st | |
| Pythagorean primes | 605th | |
| Semiprimes | 2594th | |
| Sexy primes (1st member) | 409th | |
| Roman numberals | ||
| Base 2 | 100110101011012 | 100110101011102 |
| Base 3 | 1111202013 | 1111202023 |
| Base 4 | 21222314 | 21222324 |
| Base 5 | 3041015 | 3041025 |
| Base 6 | 1135016 | 1135026 |
| Base 7 | 406037 | 406047 |
| Base 8 | 232558 | 232568 |
| Base 9 | 145219 | 145229 |
| Base 10 | 990110 | 990210 |
| Base 11 | 749111 | 749211 |
| Base 12 | 589112 | 589212 |
| Base 13 | 467813 | 467913 |
| Base 14 | 387314 | 387414 |
| Base 15 | 2e0115 | 2e0215 |
| Base 16 | 26ad16 | 26ae16 |