Compare 987979 vs 987985
| Property | 987979 | 987985 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 9879791 | 51 × 1975971 |
| Prime factorization | 987979 | 5 × 197597 |
| Divisors count | 2 | 4 |
| Divisors | 1, 987979 | 1, 5, 197597, 987985 |
| Number of properties | 4 | 1 |
| Cousin primes (1st member) | 8075th | |
| Isolated primes | 61456th | |
| Lucky primes | 8521st | |
| Primes | 77631st | |
| Semiprimes | 207620th | |
| Roman numberals | ||
| Base 2 | 111100010011010010112 | 111100010011010100012 |
| Base 3 | 12120120202113 | 12120120210013 |
| Base 4 | 33010310234 | 33010311014 |
| Base 5 | 2231034045 | 2231034205 |
| Base 6 | 331015516 | 331020016 |
| Base 7 | 112532567 | 112532657 |
| Base 8 | 36115138 | 36115218 |
| Base 9 | 17652249 | 17652319 |
| Base 10 | 98797910 | 98798510 |
| Base 11 | 61531311 | 61531911 |
| Base 12 | 3b78b712 | 3b790112 |
| Base 13 | 28790513 | 28790b13 |
| Base 14 | 1ba09d14 | 1ba0a514 |
| Base 15 | 147b0415 | 147b0a15 |
| Base 16 | f134b16 | f135116 |