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23285928 = 233970247
BaseRepresentation
bin101100011010…
…1000010101000
31121211001021210
41120311002220
521430122203
62151033120
7401633001
oct130650250
947731253
1023285928
1112165076
12796b7a0
134a93c73
1431421a8
15209e803
hex16350a8

23285928 has 16 divisors (see below), whose sum is σ = 58214880. Its totient is φ = 7761968.

The previous prime is 23285923. The next prime is 23285939. The reversal of 23285928 is 82958232.

It is not an unprimeable number, because it can be changed into a prime (23285923) 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, 485100 + ... + 485147.

It is an arithmetic number, because the mean of its divisors is an integer number (3638430).

Almost surely, 223285928 is an apocalyptic number.

It is an amenable number.

23285928 is an abundant number, since it is smaller than the sum of its proper divisors (34928952).

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

23285928 is a wasteful number, since it uses less digits than its factorization.

23285928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970256 (or 970252 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 23285928 is about 4825.5495023883. The cubic root of 23285928 is about 285.5603135151.

It can be divided in two parts, 2328 and 5928, that added together give a triangular number (8256 = T128).

The spelling of 23285928 in words is "twenty-three million, two hundred eighty-five thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 970247 1940494 2910741 3880988 5821482 7761976 11642964 23285928