Compare 991987 vs 991989
Property | 991987 | 991989 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 2 |
Total factors | 1 | 3 |
Prime factorization | 9919871 | 32 × 1102211 |
Prime factorization | 991987 | 3 × 3 × 110221 |
Divisors count | 2 | 6 |
Divisors | 1, 991987 | 1, 3, 9, 110221, 330663, 991989 |
Number of properties | 4 | 0 |
Additive primes | 29906th | |
Isolated primes | 61701st | |
Primes | 77926th | |
Sexy primes (2nd member) | 16280th | |
Roman numberals | ||
Base 2 | 111100100010111100112 | 111100100010111101012 |
Base 3 | 12121012020213 | 12121012021003 |
Base 4 | 33020233034 | 33020233114 |
Base 5 | 2232204225 | 2232204245 |
Base 6 | 331323116 | 331323136 |
Base 7 | 113010437 | 113010457 |
Base 8 | 36213638 | 36213658 |
Base 9 | 17716679 | 17716709 |
Base 10 | 99198710 | 99198910 |
Base 11 | 61832711 | 61832911 |
Base 12 | 3ba09712 | 3ba09912 |
Base 13 | 28969913 | 28969b13 |
Base 14 | 1bb72314 | 1bb72514 |
Base 15 | 148dc715 | 148dc915 |
Base 16 | f22f316 | f22f516 |