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56606780 = 2256146399
BaseRepresentation
bin1101011111110…
…0000000111100
310221111220220102
43113330000330
5103442404110
65341140232
71255102226
oct327740074
9127456812
1056606780
1129a5356a
1216b5a678
13b95c649
147737416
154e825a5
hex35fc03c

56606780 has 24 divisors (see below), whose sum is σ = 120825600. Its totient is φ = 22271040.

The previous prime is 56606779. The next prime is 56606789. The reversal of 56606780 is 8760665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56606789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21980 + ... + 24419.

It is an arithmetic number, because the mean of its divisors is an integer number (5034400).

Almost surely, 256606780 is an apocalyptic number.

It is an amenable number.

56606780 is an abundant number, since it is smaller than the sum of its proper divisors (64218820).

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

56606780 is a wasteful number, since it uses less digits than its factorization.

56606780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46469 (or 46467 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 56606780 is about 7523.7477363346. The cubic root of 56606780 is about 383.9630950499.

The spelling of 56606780 in words is "fifty-six million, six hundred six thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 46399 92798 185596 231995 463990 927980 2830339 5660678 11321356 14151695 28303390 56606780