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56000038 = 228000019
BaseRepresentation
bin1101010110011…
…1111000100110
310220101002121111
43111213320212
5103314000123
65320135234
71246664263
oct325477046
9126332544
1056000038
1129679726
121690751a
13b7a9423
14761a26a
154db290d
hex3567e26

56000038 has 4 divisors (see below), whose sum is σ = 84000060. Its totient is φ = 28000018.

The previous prime is 56000029. The next prime is 56000039. The reversal of 56000038 is 83000065.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 55999982 and 56000018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56000039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14000008 + ... + 14000011.

It is an arithmetic number, because the mean of its divisors is an integer number (21000015).

Almost surely, 256000038 is an apocalyptic number.

56000038 is a deficient number, since it is larger than the sum of its proper divisors (28000022).

56000038 is a wasteful number, since it uses less digits than its factorization.

56000038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28000021.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 56000038 is about 7483.3173125293. The cubic root of 56000038 is about 382.5863230918.

The spelling of 56000038 in words is "fifty-six million, thirty-eight", and thus it is an aban number and an uban number.

Divisors: 1 2 28000019 56000038