Compare 1939 vs 1949
| Property | 1939 | 1949 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 2771 | 19491 |
| Prime factorization | 7 × 277 | 1949 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 277, 1939 | 1, 1949 |
| Number of properties | 1 | 8 |
| Additive primes | 156th | |
| Chen primes | 183rd | |
| Emirps | 95th | |
| Harmonic primes | 110th | |
| Long primes | 115th | |
| Primes | 296th | |
| Pythagorean primes | 144th | |
| Semiprimes | 558th | |
| Twin primes (1st member) | 60th | |
| Roman numberals | MCMXXXIX | MCMXLIX |
| Base 2 | 111100100112 | 111100111012 |
| Base 3 | 21222113 | 22000123 |
| Base 4 | 1321034 | 1321314 |
| Base 5 | 302245 | 302445 |
| Base 6 | 125516 | 130056 |
| Base 7 | 54407 | 54537 |
| Base 8 | 36238 | 36358 |
| Base 9 | 25849 | 26059 |
| Base 10 | 193910 | 194910 |
| Base 11 | 150311 | 151211 |
| Base 12 | 115712 | 116512 |
| Base 13 | b6213 | b6c13 |
| Base 14 | 9c714 | 9d314 |
| Base 15 | 89415 | 89e15 |
| Base 16 | 79316 | 79d16 |