Compare 164981 vs 164987
| Property | 164981 | 164987 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 291 × 56891 | 1649871 |
| Prime factorization | 29 × 5689 | 164987 |
| Divisors count | 4 | 2 |
| Divisors | 1, 29, 5689, 164981 | 1, 164987 |
| Number of properties | 1 | 4 |
| Harmonic primes | 5670th | |
| Isolated primes | 11403rd | |
| Primes | 15092nd | |
| Safe primes | 1000th | |
| Semiprimes | 37666th | |
| Roman numberals | ||
| Base 2 | 1010000100011101012 | 1010000100011110112 |
| Base 3 | 221010221023 | 221010221223 |
| Base 4 | 2201013114 | 2201013234 |
| Base 5 | 202344115 | 202344225 |
| Base 6 | 33114456 | 33114556 |
| Base 7 | 12546657 | 12550047 |
| Base 8 | 5021658 | 5021738 |
| Base 9 | 2712729 | 2712789 |
| Base 10 | 16498110 | 16498710 |
| Base 11 | 102a5311 | 102a5911 |
| Base 12 | 7b58512 | 7b58b12 |
| Base 13 | 5a12b13 | 5a13413 |
| Base 14 | 441a514 | 441ab14 |
| Base 15 | 33d3b15 | 33d4215 |
| Base 16 | 2847516 | 2847b16 |