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23230047840 = 2535232418731
BaseRepresentation
bin10101101000100111…
…100110011001100000
32012221221102200220020
4111220213212121200
5340033343012330
614401032313440
71451443101666
oct255047463140
965857380806
1023230047840
11994083584a
124603842880
13226293714c
1411a5292c36
1590e602210
hex5689e6660

23230047840 has 192 divisors, whose sum is σ = 76681769472. Its totient is φ = 5900083200.

The previous prime is 23230047833. The next prime is 23230047859. The reversal of 23230047840 is 4874003232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2656275 + ... + 2665005.

It is an arithmetic number, because the mean of its divisors is an integer number (399384216).

Almost surely, 223230047840 is an apocalyptic number.

23230047840 is a gapful number since it is divisible by the number (20) 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 23230047840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38340884736).

23230047840 is an abundant number, since it is smaller than the sum of its proper divisors (53451721632).

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

23230047840 is a wasteful number, since it uses less digits than its factorization.

23230047840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9013 (or 9005 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 23230047840 in words is "twenty-three billion, two hundred thirty million, forty-seven thousand, eight hundred forty".