Compare 499 vs 501
| Property | 499 | 501 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 4991 | 31 × 1671 |
| Prime factorization | 499 | 3 × 167 |
| Divisors count | 2 | 4 |
| Divisors | 1, 499 | 1, 3, 167, 501 |
| Number of properties | 6 | 1 |
| Chen primes | 67th | |
| Cousin primes (1st member) | 27th | |
| Harmonic primes | 39th | |
| Isolated primes | 48th | |
| Long primes | 35th | |
| Primes | 95th | |
| Semiprimes | 154th | |
| Roman numberals | CDXCIX | DI |
| Base 2 | 1111100112 | 1111101012 |
| Base 3 | 2001113 | 2001203 |
| Base 4 | 133034 | 133114 |
| Base 5 | 34445 | 40015 |
| Base 6 | 21516 | 21536 |
| Base 7 | 13127 | 13147 |
| Base 8 | 7638 | 7658 |
| Base 9 | 6149 | 6169 |
| Base 10 | 49910 | 50110 |
| Base 11 | 41411 | 41611 |
| Base 12 | 35712 | 35912 |
| Base 13 | 2c513 | 2c713 |
| Base 14 | 27914 | 27b14 |
| Base 15 | 23415 | 23615 |
| Base 16 | 1f316 | 1f516 |