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23981675328 = 26321317238191
BaseRepresentation
bin10110010101011010…
…110101001101000000
32021220022202022222100
4112111122311031000
5343103302102303
615003402310400
71506200606532
oct262532651500
967808668870
1023981675328
11a197037696
1247934b8400
132352581640
141237029852
159555c18a3
hex5956b5340

23981675328 has 336 divisors, whose sum is σ = 81799151616. Its totient is φ = 6642155520.

The previous prime is 23981675321. The next prime is 23981675353. The reversal of 23981675328 is 82357618932.

23981675328 is a `hidden beast` number, since 2 + 3 + 98 + 16 + 7 + 532 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23981675321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2923713 + ... + 2931903.

It is an arithmetic number, because the mean of its divisors is an integer number (243449856).

Almost surely, 223981675328 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 23981675328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40899575808).

23981675328 is an abundant number, since it is smaller than the sum of its proper divisors (57817476288).

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

23981675328 is a wasteful number, since it uses less digits than its factorization.

23981675328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262 (or 8249 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 23981675328 in words is "twenty-three billion, nine hundred eighty-one million, six hundred seventy-five thousand, three hundred twenty-eight".