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56731024 = 24722692
BaseRepresentation
bin1101100001101…
…0010110010000
310221202020100001
43120122112100
5104010343044
65343535344
71256130400
oct330322620
9127666301
1056731024
112a028949
1216bba554
13b9a406c
14776a800
154ea92d4
hex361a590

56731024 has 45 divisors (see below), whose sum is σ = 128338977. Its totient is φ = 24222912.

The previous prime is 56731019. The next prime is 56731033. The reversal of 56731024 is 42013765.

The square root of 56731024 is 7532.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3732624 + 52998400 = 1932^2 + 7280^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56730983 and 56731001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 210762 + ... + 211030.

Almost surely, 256731024 is an apocalyptic number.

56731024 is the 7532-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56731024

56731024 is an abundant number, since it is smaller than the sum of its proper divisors (71607953).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56731024 is an equidigital number, since it uses as much as digits as its factorization.

56731024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The cubic root of 56731024 is about 384.2438049534.

Adding to 56731024 its reverse (42013765), we get a palindrome (98744789).

The spelling of 56731024 in words is "fifty-six million, seven hundred thirty-one thousand, twenty-four".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 269 392 538 784 1076 1883 2152 3766 4304 7532 13181 15064 26362 30128 52724 72361 105448 144722 210896 289444 506527 578888 1013054 1157776 2026108 3545689 4052216 7091378 8104432 14182756 28365512 56731024