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23097928 = 237412463
BaseRepresentation
bin101100000011…
…1001001001000
31121110111101211
41120013021020
521403113203
62143022504
7400220620
oct130071110
947414354
1023097928
11120468a7
12789aa34
134a29519
1430d3880
152063c6d
hex1607248

23097928 has 16 divisors (see below), whose sum is σ = 49495680. Its totient is φ = 9899088.

The previous prime is 23097913. The next prime is 23097929. The reversal of 23097928 is 82979032.

It is not an unprimeable number, because it can be changed into a prime (23097929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206176 + ... + 206287.

It is an arithmetic number, because the mean of its divisors is an integer number (3093480).

Almost surely, 223097928 is an apocalyptic number.

23097928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23097928 is an abundant number, since it is smaller than the sum of its proper divisors (26397752).

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

23097928 is a wasteful number, since it uses less digits than its factorization.

23097928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412476 (or 412472 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 23097928 is about 4806.0303785973. The cubic root of 23097928 is about 284.7897412982.

It can be divided in two parts, 23097 and 928, that added together give a square (24025 = 1552).

The spelling of 23097928 in words is "twenty-three million, ninety-seven thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 56 412463 824926 1649852 2887241 3299704 5774482 11548964 23097928