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23828172 = 22312131637
BaseRepresentation
bin101101011100…
…1011011001100
31122211121002220
41122321123030
522100000142
62210415340
7406351614
oct132713314
948747086
1023828172
11124a5505
127b91550
134c23a14
143243a44
15215a2ec
hex16b96cc

23828172 has 24 divisors (see below), whose sum is σ = 55678896. Its totient is φ = 7931328.

The previous prime is 23828159. The next prime is 23828173. The reversal of 23828172 is 27182832.

It is a super-3 number, since 3×238281723 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (23828173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13738 + ... + 15374.

It is an arithmetic number, because the mean of its divisors is an integer number (2319954).

Almost surely, 223828172 is an apocalyptic number.

It is an amenable number.

23828172 is an abundant number, since it is smaller than the sum of its proper divisors (31850724).

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

23828172 is a wasteful number, since it uses less digits than its factorization.

23828172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857 (or 2855 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 23828172 is about 4881.4108616260. The cubic root of 23828172 is about 287.7598789433.

The spelling of 23828172 in words is "twenty-three million, eight hundred twenty-eight thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 1213 1637 2426 3274 3639 4852 4911 6548 7278 9822 14556 19644 1985681 3971362 5957043 7942724 11914086 23828172