Question

1729 সংখ্যাটিকে ———সংখ্যা বলা হয় ​

Answer 1

1729 is a hardy ramanujan numbers.

It is the smallest number that can be represented as the sum of cubes of two different natural numbers in two way .

$1. \: 1729 = 1000 + 729 = {10}^{3} + {9}^{9}$

$2. \: 1729 = 1728 + 1 = {12}^{3} + {1}^{3}$

I hope you get it.