Compare 987991 vs 988001
| Property | 987991 | 988001 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 4 |
| Prime factorization | 9879911 | 71 × 291 × 311 × 1571 |
| Prime factorization | 987991 | 7 × 29 × 31 × 157 |
| Divisors count | 2 | 16 |
| Divisors | 1, 987991 | 1, 7, 29, 31, 157, 203, 217, 899, 1099, 4553, 4867, 6293, 31871, 34069, 141143, 988001 |
| Number of properties | 4 | 0 |
| Additive primes | 29798th | |
| Isolated primes | 61458th | |
| Primes | 77633rd | |
| Sexy primes (1st member) | 16218th | |
| Roman numberals | ||
| Base 2 | 111100010011010101112 | 111100010011011000012 |
| Base 3 | 12120120210213 | 12120120211223 |
| Base 4 | 33010311134 | 33010312014 |
| Base 5 | 2231034315 | 2231040015 |
| Base 6 | 331020116 | 331020256 |
| Base 7 | 112533047 | 112533207 |
| Base 8 | 36115278 | 36115418 |
| Base 9 | 17652379 | 17652489 |
| Base 10 | 98799110 | 98800110 |
| Base 11 | 61532411 | 61533311 |
| Base 12 | 3b790712 | 3b791512 |
| Base 13 | 28791413 | 28792113 |
| Base 14 | 1ba0ab14 | 1ba0b714 |
| Base 15 | 147b1115 | 147b1b15 |
| Base 16 | f135716 | f136116 |