Compare 138679 vs 138687
| Property | 138679 | 138687 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 1386791 | 31 × 462291 |
| Prime factorization | 138679 | 3 × 46229 |
| Divisors count | 2 | 4 |
| Divisors | 1, 138679 | 1, 3, 46229, 138687 |
| Number of properties | 4 | 1 |
| Cousin primes (1st member) | 1595th | |
| Harmonic primes | 4846th | |
| Isolated primes | 9706th | |
| Primes | 12903rd | |
| Semiprimes | 31894th | |
| Roman numberals | ||
| Base 2 | 1000011101101101112 | 1000011101101111112 |
| Base 3 | 210010200213 | 210010201203 |
| Base 4 | 2013123134 | 2013123334 |
| Base 5 | 134142045 | 134142225 |
| Base 6 | 25500116 | 25500236 |
| Base 7 | 11152127 | 11152237 |
| Base 8 | 4166678 | 4166778 |
| Base 9 | 2312079 | 2312169 |
| Base 10 | 13867910 | 13868710 |
| Base 11 | 9521211 | 9521a11 |
| Base 12 | 6830712 | 6831312 |
| Base 13 | 4b17813 | 4b18313 |
| Base 14 | 3877914 | 3878314 |
| Base 15 | 2b15415 | 2b15c15 |
| Base 16 | 21db716 | 21dbf16 |