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23159930688 = 26321710322963
BaseRepresentation
bin10101100100011100…
…000111111101000000
32012210001111101020200
4111210130013331000
5334412420240223
614350045405200
71446632106546
oct254434077500
965701441220
1023159930688
1199051a4794
1245a4269800
1322512571cb
141199c3dd96
159083a1a43
hex564707f40

23159930688 has 168 divisors, whose sum is σ = 70974191808. Its totient is φ = 7195004928.

The previous prime is 23159930687. The next prime is 23159930711. The reversal of 23159930688 is 88603995132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23159930681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 997095 + ... + 1020057.

Almost surely, 223159930688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23159930688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35487095904).

23159930688 is an abundant number, since it is smaller than the sum of its proper divisors (47814261120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23159930688 is a wasteful number, since it uses less digits than its factorization.

23159930688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23101 (or 23088 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 23159930688 in words is "twenty-three billion, one hundred fifty-nine million, nine hundred thirty thousand, six hundred eighty-eight".