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23253328 = 247207619
BaseRepresentation
bin101100010110…
…1000101010000
31121202101120101
41120231011100
521423101303
62150222144
7401435650
oct130550520
947671511
1023253328
111214262a
127954954
134a82187
143134360
152094d1d
hex162d150

23253328 has 20 divisors (see below), whose sum is σ = 51489760. Its totient is φ = 9965664.

The previous prime is 23253311. The next prime is 23253341. The reversal of 23253328 is 82335232.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 23253296 and 23253305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103698 + ... + 103921.

It is an arithmetic number, because the mean of its divisors is an integer number (2574488).

Almost surely, 223253328 is an apocalyptic number.

23253328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23253328 is an abundant number, since it is smaller than the sum of its proper divisors (28236432).

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

23253328 is a wasteful number, since it uses less digits than its factorization.

23253328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207634 (or 207628 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 23253328 is about 4822.1704656721. The cubic root of 23253328 is about 285.4269910225.

The spelling of 23253328 in words is "twenty-three million, two hundred fifty-three thousand, three hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 207619 415238 830476 1453333 1660952 2906666 3321904 5813332 11626664 23253328