Compare 40007 vs 40009
| Property | 40007 | 40009 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 36371 | 400091 |
| Prime factorization | 11 × 3637 | 40009 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 3637, 40007 | 1, 40009 |
| Number of properties | 1 | 7 |
| Additive primes | 1881st | |
| Chen primes | 1976th | |
| Cousin primes (1st member) | 582nd | |
| Happy primes | 688th | |
| Isolated primes | 3023rd | |
| Primes | 4204th | |
| Pythagorean primes | 2086th | |
| Semiprimes | 9792nd | |
| Roman numberals | ||
| Base 2 | 10011100010001112 | 10011100010010012 |
| Base 3 | 20002122023 | 20002122113 |
| Base 4 | 213010134 | 213010214 |
| Base 5 | 22400125 | 22400145 |
| Base 6 | 5051156 | 5051216 |
| Base 7 | 2244327 | 2244347 |
| Base 8 | 1161078 | 1161118 |
| Base 9 | 607829 | 607849 |
| Base 10 | 4000710 | 4000910 |
| Base 11 | 2807011 | 2807211 |
| Base 12 | 1b19b12 | 1b1a112 |
| Base 13 | 1529613 | 1529813 |
| Base 14 | 1081914 | 1081b14 |
| Base 15 | bcc215 | bcc415 |
| Base 16 | 9c4716 | 9c4916 |