Compare 1721 vs 1730
Property | 1721 | 1730 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 3 |
Total factors | 1 | 3 |
Prime factorization | 17211 | 21 × 51 × 1731 |
Prime factorization | 1721 | 2 × 5 × 173 |
Divisors count | 2 | 8 |
Divisors | 1, 1721 | 1, 2, 5, 10, 173, 346, 865, 1730 |
Number of properties | 6 | 0 |
Additive primes | 143rd | |
Chen primes | 169th | |
Primes | 268th | |
Pythagorean primes | 130th | |
Twin primes (1st member) | 55th | |
Ulam primes | 25th | |
Roman numberals | MDCCXXI | MDCCXXX |
Base 2 | 110101110012 | 110110000102 |
Base 3 | 21002023 | 21010023 |
Base 4 | 1223214 | 1230024 |
Base 5 | 233415 | 234105 |
Base 6 | 115456 | 120026 |
Base 7 | 50067 | 50217 |
Base 8 | 32718 | 33028 |
Base 9 | 23229 | 23329 |
Base 10 | 172110 | 173010 |
Base 11 | 132511 | 133311 |
Base 12 | bb512 | 100212 |
Base 13 | a2513 | a3113 |
Base 14 | 8ad14 | 8b814 |
Base 15 | 79b15 | 7a515 |
Base 16 | 6b916 | 6c216 |