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56000880 = 243251331193
BaseRepresentation
bin1101010110100…
…0000101110000
310220101010202200
43111220011300
5103314012010
65320143200
71246666605
oct325500560
9126333680
1056000880
112967a321
1216907b00
13b7a9920
14761a6ac
154db2cc0
hex3568170

56000880 has 240 divisors, whose sum is σ = 210153216. Its totient is φ = 13271040.

The previous prime is 56000863. The next prime is 56000881. The reversal of 56000880 is 8800065.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56000881) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 290064 + ... + 290256.

Almost surely, 256000880 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 56000880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105076608).

56000880 is an abundant number, since it is smaller than the sum of its proper divisors (154152336).

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

56000880 is a wasteful number, since it uses less digits than its factorization.

56000880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 56000880 is about 7483.3735707901. The cubic root of 56000880 is about 382.5882405671.

The spelling of 56000880 in words is "fifty-six million, eight hundred eighty", and thus it is an aban number.