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56345838 = 239390973
BaseRepresentation
bin1101011011110…
…0010011101110
310221000122221220
43112330103232
5103411031323
65331404210
71252634403
oct326742356
9127018856
1056345838
112989550a
1216a53666
13b89a943
1476aa2aa
154e300e3
hex35bc4ee

56345838 has 8 divisors (see below), whose sum is σ = 112691688. Its totient is φ = 18781944.

The previous prime is 56345831. The next prime is 56345893. The reversal of 56345838 is 83854365.

It is a sphenic number, since it is the product of 3 distinct primes.

56345838 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 56345838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56345831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4695481 + ... + 4695492.

It is an arithmetic number, because the mean of its divisors is an integer number (14086461).

Almost surely, 256345838 is an apocalyptic number.

56345838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56345838 is a wasteful number, since it uses less digits than its factorization.

56345838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9390978.

The product of its digits is 345600, while the sum is 42.

The square root of 56345838 is about 7506.3864808575. The cubic root of 56345838 is about 383.3721973619.

The spelling of 56345838 in words is "fifty-six million, three hundred forty-five thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9390973 18781946 28172919 56345838