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56385087 = 3111708639
BaseRepresentation
bin1101011100010…
…1111000111111
310221002122210120
43113011320333
5103413310322
65332310023
71253160003
oct327057077
9127078716
1056385087
1129911a50
1216a72313
13b8b2775
1476ba703
154e3ba5c
hex35c5e3f

56385087 has 8 divisors (see below), whose sum is σ = 82014720. Its totient is φ = 34172760.

The previous prime is 56385053. The next prime is 56385089. The reversal of 56385087 is 78058365.

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

It is not a de Polignac number, because 56385087 - 26 = 56385023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56385089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854287 + ... + 854352.

It is an arithmetic number, because the mean of its divisors is an integer number (10251840).

Almost surely, 256385087 is an apocalyptic number.

56385087 is a deficient number, since it is larger than the sum of its proper divisors (25629633).

56385087 is a wasteful number, since it uses less digits than its factorization.

56385087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708653.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 56385087 is about 7509.0003995206. Note that the first 3 decimals coincide. The cubic root of 56385087 is about 383.4611922992.

The spelling of 56385087 in words is "fifty-six million, three hundred eighty-five thousand, eighty-seven".

Divisors: 1 3 11 33 1708639 5125917 18795029 56385087