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56039032013 = 269920762887
BaseRepresentation
bin110100001100001011…
…111100010011001101
312100122110022210011012
4310030023330103031
51404231443011023
641424410535005
74022461625036
oct641413742315
9170573283135
1056039032013
11218476331a8
12aa3b437465
135390c53853
1429d87bda8d
1516ceb3c978
hexd0c2fc4cd

56039032013 has 4 divisors (see below), whose sum is σ = 56059797600. Its totient is φ = 56018266428.

The previous prime is 56039031989. The next prime is 56039032043. The reversal of 56039032013 is 31023093065.

56039032013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31023093065 = 56204618613.

It is a cyclic number.

It is not a de Polignac number, because 56039032013 - 210 = 56039030989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56039032043) 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, 10378745 + ... + 10384142.

It is an arithmetic number, because the mean of its divisors is an integer number (14014949400).

Almost surely, 256039032013 is an apocalyptic number.

It is an amenable number.

56039032013 is a deficient number, since it is larger than the sum of its proper divisors (20765587).

56039032013 is a wasteful number, since it uses less digits than its factorization.

56039032013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20765586.

The product of its (nonzero) digits is 14580, while the sum is 32.

The spelling of 56039032013 in words is "fifty-six billion, thirty-nine million, thirty-two thousand, thirteen".

Divisors: 1 2699 20762887 56039032013