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56120864 = 251753777
BaseRepresentation
bin1101011000010…
…1011000100000
310220121020100112
43112011120200
5103331331424
65322510452
71251006452
oct326053040
9126536315
1056120864
1129751488
1216965428
13b81c417
14764c2d2
154dd860e
hex3585620

56120864 has 12 divisors (see below), whose sum is σ = 110488014. Its totient is φ = 28060416.

The previous prime is 56120861. The next prime is 56120873. The reversal of 56120864 is 46802165.

It can be written as a sum of positive squares in only one way, i.e., 37699600 + 18421264 = 6140^2 + 4292^2 .

It is a super-3 number, since 3×561208643 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1753777 = 56120864 / (5 + 6 + 1 + 2 + 0 + 8 + 6 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 56120864.

It is not an unprimeable number, because it can be changed into a prime (56120861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 876857 + ... + 876920.

Almost surely, 256120864 is an apocalyptic number.

It is an amenable number.

56120864 is a deficient number, since it is larger than the sum of its proper divisors (54367150).

56120864 is a wasteful number, since it uses less digits than its factorization.

56120864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753787 (or 1753779 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 56120864 is about 7491.3859865849. The cubic root of 56120864 is about 382.8612822432.

The spelling of 56120864 in words is "fifty-six million, one hundred twenty thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 1753777 3507554 7015108 14030216 28060432 56120864