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56372530 = 2521412633
BaseRepresentation
bin1101011100001…
…0110100110010
310221002000120111
43113002310302
5103412410110
65332131534
71253105254
oct327026462
9127060514
1056372530
1129903575
1216a66baa
13b8a9b36
1476b5cd4
154e37e8a
hex35c2d32

56372530 has 16 divisors (see below), whose sum is σ = 101556504. Its totient is φ = 22529920.

The previous prime is 56372507. The next prime is 56372531. The reversal of 56372530 is 3527365.

56372530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 49238289 + 7134241 = 7017^2 + 2671^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56372492 and 56372501.

It is not an unprimeable number, because it can be changed into a prime (56372531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20094 + ... + 22726.

Almost surely, 256372530 is an apocalyptic number.

56372530 is a deficient number, since it is larger than the sum of its proper divisors (45183974).

56372530 is a wasteful number, since it uses less digits than its factorization.

56372530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4781.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 56372530 is about 7508.1642230308. The cubic root of 56372530 is about 383.4327244901.

Adding to 56372530 its reverse (3527365), we get a palindrome (59899895).

The spelling of 56372530 in words is "fifty-six million, three hundred seventy-two thousand, five hundred thirty".

Divisors: 1 2 5 10 2141 2633 4282 5266 10705 13165 21410 26330 5637253 11274506 28186265 56372530