Compare 1947 vs 1949
| Property | 1947 | 1949 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 111 × 591 | 19491 |
| Prime factorization | 3 × 11 × 59 | 1949 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 11, 33, 59, 177, 649, 1947 | 1, 1949 |
| Number of properties | 0 | 8 |
| Additive primes | 156th | |
| Chen primes | 183rd | |
| Emirps | 95th | |
| Harmonic primes | 110th | |
| Long primes | 115th | |
| Primes | 296th | |
| Pythagorean primes | 144th | |
| Twin primes (1st member) | 60th | |
| Roman numberals | MCMXLVII | MCMXLIX |
| Base 2 | 111100110112 | 111100111012 |
| Base 3 | 22000103 | 22000123 |
| Base 4 | 1321234 | 1321314 |
| Base 5 | 302425 | 302445 |
| Base 6 | 130036 | 130056 |
| Base 7 | 54517 | 54537 |
| Base 8 | 36338 | 36358 |
| Base 9 | 26039 | 26059 |
| Base 10 | 194710 | 194910 |
| Base 11 | 151011 | 151211 |
| Base 12 | 116312 | 116512 |
| Base 13 | b6a13 | b6c13 |
| Base 14 | 9d114 | 9d314 |
| Base 15 | 89c15 | 89e15 |
| Base 16 | 79b16 | 79d16 |