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23038687880 = 235131923137107
BaseRepresentation
bin10101011101001101…
…100111101010001000
32012110121100121101022
4111131031213222020
5334140401003010
614330035012012
71443630421145
oct253515475210
965417317338
1023038687880
11985281421a
12456b73a008
1322320b66c0
141187abd3cc
158ec902d55
hex55d367a88

23038687880 has 384 divisors, whose sum is σ = 63045319680. Its totient is φ = 7517214720.

The previous prime is 23038687783. The next prime is 23038687891. The reversal of 23038687880 is 8878683032.

It is a super-2 number, since 2×230386878802 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 215314787 + ... + 215314893.

It is an arithmetic number, because the mean of its divisors is an integer number (164180520).

Almost surely, 223038687880 is an apocalyptic number.

23038687880 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 23038687880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31522659840).

23038687880 is an abundant number, since it is smaller than the sum of its proper divisors (40006631800).

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

23038687880 is a wasteful number, since it uses less digits than its factorization.

23038687880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 23038687880 in words is "twenty-three billion, thirty-eight million, six hundred eighty-seven thousand, eight hundred eighty".