Compare 39999 vs 40009
| Property | 39999 | 40009 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 671 × 1991 | 400091 |
| Prime factorization | 3 × 67 × 199 | 40009 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 67, 199, 201, 597, 13333, 39999 | 1, 40009 |
| Number of properties | 0 | 7 |
| Additive primes | 1881st | |
| Chen primes | 1976th | |
| Cousin primes (1st member) | 582nd | |
| Happy primes | 688th | |
| Isolated primes | 3023rd | |
| Primes | 4204th | |
| Pythagorean primes | 2086th | |
| Roman numberals | ||
| Base 2 | 10011100001111112 | 10011100010010012 |
| Base 3 | 20002121103 | 20002122113 |
| Base 4 | 213003334 | 213010214 |
| Base 5 | 22344445 | 22400145 |
| Base 6 | 5051036 | 5051216 |
| Base 7 | 2244217 | 2244347 |
| Base 8 | 1160778 | 1161118 |
| Base 9 | 607739 | 607849 |
| Base 10 | 3999910 | 4000910 |
| Base 11 | 2806311 | 2807211 |
| Base 12 | 1b19312 | 1b1a112 |
| Base 13 | 1528b13 | 1529813 |
| Base 14 | 1081114 | 1081b14 |
| Base 15 | bcb915 | bcc415 |
| Base 16 | 9c3f16 | 9c4916 |