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56812976 = 2411437507
BaseRepresentation
bin1101100010111…
…0010110110000
310221220101202022
43120232112300
5104021003401
65345411012
71256621333
oct330562660
9127811668
1056812976
112a084480
1217039a68
13ba0245c
14778c61a
154ec371b
hex362e5b0

56812976 has 40 divisors (see below), whose sum is σ = 122890944. Its totient is φ = 25220160.

The previous prime is 56812969. The next prime is 56812981. The reversal of 56812976 is 67921865.

56812976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

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, 3815 + ... + 11321.

Almost surely, 256812976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56812976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61445472).

56812976 is an abundant number, since it is smaller than the sum of its proper divisors (66077968).

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

56812976 is a wasteful number, since it uses less digits than its factorization.

56812976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569 (or 7563 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 56812976 is about 7537.4382916214. The cubic root of 56812976 is about 384.4287384359.

Subtracting 56812976 from its reverse (67921865), we obtain a square (11108889 = 33332).

The spelling of 56812976 in words is "fifty-six million, eight hundred twelve thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 11 16 22 43 44 86 88 172 176 344 473 688 946 1892 3784 7507 7568 15014 30028 60056 82577 120112 165154 322801 330308 645602 660616 1291204 1321232 2582408 3550811 5164816 7101622 14203244 28406488 56812976