Compare 1720 vs 1723
| Property | 1720 | 1723 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 23 × 51 × 431 | 17231 |
| Prime factorization | 2 × 2 × 2 × 5 × 43 | 1723 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720 | 1, 1723 |
| Number of properties | 0 | 6 |
| Additive primes | 144th | |
| Emirps | 82nd | |
| Lucky primes | 64th | |
| Primes | 269th | |
| Super primes | 57th | |
| Twin primes (2nd member) | 55th | |
| Roman numberals | MDCCXX | MDCCXXIII |
| Base 2 | 110101110002 | 110101110112 |
| Base 3 | 21002013 | 21002113 |
| Base 4 | 1223204 | 1223234 |
| Base 5 | 233405 | 233435 |
| Base 6 | 115446 | 115516 |
| Base 7 | 50057 | 50117 |
| Base 8 | 32708 | 32738 |
| Base 9 | 23219 | 23249 |
| Base 10 | 172010 | 172310 |
| Base 11 | 132411 | 132711 |
| Base 12 | bb412 | bb712 |
| Base 13 | a2413 | a2713 |
| Base 14 | 8ac14 | 8b114 |
| Base 15 | 79a15 | 79d15 |
| Base 16 | 6b816 | 6bb16 |