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23375520 = 253357773
BaseRepresentation
bin101100100101…
…0111010100000
31121222121012000
41121022322200
521441004040
62153004000
7402455130
oct131127240
947877160
1023375520
1112216413
1279b3600
134ac598c
143166ac0
1520bb130
hex164aea0

23375520 has 192 divisors, whose sum is σ = 93623040. Its totient is φ = 5336064.

The previous prime is 23375507. The next prime is 23375557. The reversal of 23375520 is 2557332.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29854 + ... + 30626.

It is an arithmetic number, because the mean of its divisors is an integer number (487620).

Almost surely, 223375520 is an apocalyptic number.

23375520 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 23375520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46811520).

23375520 is an abundant number, since it is smaller than the sum of its proper divisors (70247520).

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

23375520 is a wasteful number, since it uses less digits than its factorization.

23375520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 23375520 is about 4834.8236782741. The cubic root of 23375520 is about 285.9260734482.

The spelling of 23375520 in words is "twenty-three million, three hundred seventy-five thousand, five hundred twenty".