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23642689752 = 23331117683857
BaseRepresentation
bin10110000001001101…
…101101000011011000
32021000200220002012000
4112001031231003120
5341410012033002
614510012521000
71464613355433
oct260115550330
967020802160
1023642689752
11a032755820
1246b9a80160
1322ca283966
141203dc881a
1593596161c
hex58136d0d8

23642689752 has 256 divisors, whose sum is σ = 76058611200. Its totient is φ = 6725283840.

The previous prime is 23642689751. The next prime is 23642689771. The reversal of 23642689752 is 25798624632.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23642689751) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27587308 + ... + 27588164.

It is an arithmetic number, because the mean of its divisors is an integer number (297103950).

Almost surely, 223642689752 is an apocalyptic number.

23642689752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23642689752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38029305600).

23642689752 is an abundant number, since it is smaller than the sum of its proper divisors (52415921448).

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

23642689752 is a wasteful number, since it uses less digits than its factorization.

23642689752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1573 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 23642689752 in words is "twenty-three billion, six hundred forty-two million, six hundred eighty-nine thousand, seven hundred fifty-two".