Aleksandr Mikhailovich Lyapunov was born on this day 159 years ago.
Properties of the number 729082:
729082 = 2 × 364541 is semiprime and squarefree.729082 has 2 distinct prime factors, 4 divisors, 17 antidivisors and 364540 totatives.
729082 has a triangular digit sum 28 in base 10.
Reversing the decimal digits of 729082 results in a prime.
729082 is the difference of 2 positive pentagonal numbers in 2 ways.
729082 = 912 + 8492 is the sum of 2 positive squares in 1 way.
729082 = 482 + 1272 + 8432 is the sum of 3 positive squares.
7290822 = 1545182 + 7125202 is the sum of 2 positive squares in 1 way.
7290822 is the sum of 3 positive squares.
729082 is a divisor of 2276628 - 1.
729082 is an emirpimes in (at least) the following bases: 2, 8, 12, 14, 15, 16, 17, 34, 35, 36, 41, 42, 58, 61, 63, 68, 71, 74, 78, 82, 84, 86, 90, 92, and 96.
729082 in base 3 = 1101001010001 and consists of only the digits '0' and '1'.