Compare 990914 vs 990917
| Property | 990914 | 990917 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 4954571 | 9909171 |
| Prime factorization | 2 × 495457 | 990917 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 495457, 990914 | 1, 990917 |
| Number of properties | 1 | 4 |
| Chen primes | 29725th | |
| Isolated primes | 61627th | |
| Primes | 77842nd | |
| Semiprimes | 208219th | |
| Sexy primes (1st member) | 16259th | |
| Roman numberals | ||
| Base 2 | 111100011110110000102 | 111100011110110001012 |
| Base 3 | 12121000211123 | 12121000211223 |
| Base 4 | 33013230024 | 33013230114 |
| Base 5 | 2232021245 | 2232021325 |
| Base 6 | 331233226 | 331233256 |
| Base 7 | 112646517 | 112646547 |
| Base 8 | 36173028 | 36173058 |
| Base 9 | 17702459 | 17702489 |
| Base 10 | 99091410 | 99091710 |
| Base 11 | 61754111 | 61754411 |
| Base 12 | 3b954212 | 3b954512 |
| Base 13 | 28905213 | 28905513 |
| Base 14 | 1bb19814 | 1bb19b14 |
| Base 15 | 14890e15 | 14891215 |
| Base 16 | f1ec216 | f1ec516 |