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56464880 = 245719941
BaseRepresentation
bin1101011101100…
…1010111110000
310221020201020212
43113121113300
5103423334010
65334123252
71253641433
oct327312760
9127221225
1056464880
112996699a
1216ab0528
13b90cb94
1476db81a
154e55505
hex35d95f0

56464880 has 40 divisors (see below), whose sum is σ = 133143264. Its totient is φ = 22265600.

The previous prime is 56464873. The next prime is 56464901. The reversal of 56464880 is 8846465.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710 + ... + 10650.

Almost surely, 256464880 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 56464880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66571632).

56464880 is an abundant number, since it is smaller than the sum of its proper divisors (76678384).

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

56464880 is a wasteful number, since it uses less digits than its factorization.

56464880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10025 (or 10019 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 56464880 is about 7514.3116783908. The cubic root of 56464880 is about 383.6419912692.

The spelling of 56464880 in words is "fifty-six million, four hundred sixty-four thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 71 80 142 284 355 568 710 1136 1420 2840 5680 9941 19882 39764 49705 79528 99410 159056 198820 397640 705811 795280 1411622 2823244 3529055 5646488 7058110 11292976 14116220 28232440 56464880