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8979607013 = 13690739001
BaseRepresentation
bin10000101110011100…
…11110110111100101
3212011210201022002112
420113032132313211
5121342234411023
64043012050405
7435344254166
oct102716366745
925153638075
108979607013
113898832723
1218a7303a05
13b01490040
1461282776d
153784ee478
hex21739ede5

8979607013 has 4 divisors (see below), whose sum is σ = 9670346028. Its totient is φ = 8288868000.

The previous prime is 8979607001. The next prime is 8979607051. The reversal of 8979607013 is 3107069798.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1614191329 + 7365415684 = 40177^2 + 85822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8979607013 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 (8979603013) 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, 345369488 + ... + 345369513.

It is an arithmetic number, because the mean of its divisors is an integer number (2417586507).

Almost surely, 28979607013 is an apocalyptic number.

It is an amenable number.

8979607013 is a deficient number, since it is larger than the sum of its proper divisors (690739015).

8979607013 is a wasteful number, since it uses less digits than its factorization.

8979607013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690739014.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 8979607013 is about 94760.7883726175. The cubic root of 8979607013 is about 2078.5115563208.

The spelling of 8979607013 in words is "eight billion, nine hundred seventy-nine million, six hundred seven thousand, thirteen".

Divisors: 1 13 690739001 8979607013