1729 (number)
Hardy-Ramanujan number / From Wikipedia, the free encyclopedia
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1729 is the natural number following 1728 and preceding 1730. It is the first nontrivial taxicab number, expressed as the sum of two cubic numbers in two different ways. It is also known as the Ramanujan number or Hardy–Ramanujan number, named after G. H. Hardy and Srinivasa Ramanujan.
Quick Facts ← 1728 1729 1730 →, Cardinal ...
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Cardinal | one thousand seven hundred twenty-nine | |||
Ordinal | 1729th (one thousand seven hundred twenty-ninth) | |||
Factorization | 7 × 13 × 19 | |||
Divisors | 1, 7, 13, 19, 91, 133, 247, 1729 | |||
Greek numeral | ,ΑΨΚΘ´ | |||
Roman numeral | MDCCXXIX | |||
Binary | 110110000012 | |||
Ternary | 21010013 | |||
Senary | 120016 | |||
Octal | 33018 | |||
Duodecimal | 100112 | |||
Hexadecimal | 6C116 |
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