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56009073 = 321318761
BaseRepresentation
bin1101010110101…
…0000101110001
310220101120000010
43111222011301
5103314242243
65320245133
71250032521
oct325520561
9126346003
1056009073
112968549a
12169107a9
13b7b0583
14761d681
154db5433
hex356a171

56009073 has 8 divisors (see below), whose sum is σ = 74722336. Its totient is φ = 37317600.

The previous prime is 56009059. The next prime is 56009081. The reversal of 56009073 is 37090065.

56009073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56009073 - 213 = 56000881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56009073.

It is not an unprimeable number, because it can be changed into a prime (56009053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013 + ... + 10773.

It is an arithmetic number, because the mean of its divisors is an integer number (9340292).

Almost surely, 256009073 is an apocalyptic number.

It is an amenable number.

56009073 is a deficient number, since it is larger than the sum of its proper divisors (18713263).

56009073 is a wasteful number, since it uses less digits than its factorization.

56009073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10895.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 56009073 is about 7483.9209643074. The cubic root of 56009073 is about 382.6068973728.

The spelling of 56009073 in words is "fifty-six million, nine thousand, seventy-three".

Divisors: 1 3 2131 6393 8761 26283 18669691 56009073