Compare 128287 vs 128288
| Property | 128287 | 128288 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 7 |
| Prime factorization | 1282871 | 25 × 191 × 2111 |
| Prime factorization | 128287 | 2 × 2 × 2 × 2 × 2 × 19 × 211 |
| Divisors count | 2 | 24 |
| Divisors | 1, 128287 | 1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 211, 304, 422, 608, 844, 1688, 3376, 4009, 6752, 8018, 16036, 32072, 64144, 128288 |
| Number of properties | 5 | 0 |
| Cousin primes (1st member) | 1492nd | |
| Good primes | 785th | |
| Isolated primes | 9016th | |
| Long primes | 4508th | |
| Primes | 12009th | |
| Roman numberals | ||
| Base 2 | 111110101000111112 | 111110101001000002 |
| Base 3 | 201112221013 | 201112221023 |
| Base 4 | 1331101334 | 1331102004 |
| Base 5 | 131011225 | 131011235 |
| Base 6 | 24255316 | 24255326 |
| Base 7 | 10430057 | 10430067 |
| Base 8 | 3724378 | 3724408 |
| Base 9 | 2148719 | 2148729 |
| Base 10 | 12828710 | 12828810 |
| Base 11 | 8842511 | 8842611 |
| Base 12 | 622a712 | 622a812 |
| Base 13 | 4651313 | 4651413 |
| Base 14 | 34a7514 | 34a7614 |
| Base 15 | 2802715 | 2802815 |
| Base 16 | 1f51f16 | 1f52016 |