Compare 991490 vs 991493
| Property | 991490 | 991493 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 51 × 991491 | 9914931 |
| Prime factorization | 2 × 5 × 99149 | 991493 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 5, 10, 99149, 198298, 495745, 991490 | 1, 991493 |
| Number of properties | 0 | 4 |
| Isolated primes | 61665th | |
| Primes | 77884th | |
| Sexy primes (1st member) | 16272nd | |
| Sophie germain primes | 7686th | |
| Roman numberals | ||
| Base 2 | 111100100001000000102 | 111100100001000001012 |
| Base 3 | 12121010012123 | 12121010012223 |
| Base 4 | 33020100024 | 33020100114 |
| Base 5 | 2232114305 | 2232114335 |
| Base 6 | 331301226 | 331301256 |
| Base 7 | 112664337 | 112664367 |
| Base 8 | 36204028 | 36204058 |
| Base 9 | 17710559 | 17710589 |
| Base 10 | 99149010 | 99149310 |
| Base 11 | 617a1511 | 617a1811 |
| Base 12 | 3b994212 | 3b994512 |
| Base 13 | 2893a613 | 2893a913 |
| Base 14 | 1bb48a14 | 1bb48d14 |
| Base 15 | 148b9515 | 148b9815 |
| Base 16 | f210216 | f210516 |