Compare 40021 vs 40031
| Property | 40021 | 40031 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 311 × 12911 | 400311 |
| Prime factorization | 31 × 1291 | 40031 |
| Divisors count | 4 | 2 |
| Divisors | 1, 31, 1291, 40021 | 1, 40031 |
| Number of properties | 1 | 4 |
| Harmonic primes | 1568th | |
| Isolated primes | 3025th | |
| Primes | 4206th | |
| Semiprimes | 9796th | |
| Sexy primes (1st member) | 1195th | |
| Roman numberals | ||
| Base 2 | 10011100010101012 | 10011100010111112 |
| Base 3 | 20002200213 | 20002201223 |
| Base 4 | 213011114 | 213011334 |
| Base 5 | 22400415 | 22401115 |
| Base 6 | 5051416 | 5051556 |
| Base 7 | 2244527 | 2244657 |
| Base 8 | 1161258 | 1161378 |
| Base 9 | 608079 | 608189 |
| Base 10 | 4002110 | 4003110 |
| Base 11 | 2808311 | 2809211 |
| Base 12 | 1b1b112 | 1b1bb12 |
| Base 13 | 152a713 | 152b413 |
| Base 14 | 1082914 | 1083514 |
| Base 15 | bcd115 | bcdb15 |
| Base 16 | 9c5516 | 9c5f16 |