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230172 = 22319181
BaseRepresentation
bin111000001100011100
3102200201220
4320030130
524331142
64533340
71646025
oct701434
9380656
10230172
11147a28
12b1250
13809c7
145dc4c
15482ec
hex3831c

230172 has 12 divisors (see below), whose sum is σ = 537096. Its totient is φ = 76720.

The previous prime is 230149. The next prime is 230189. The reversal of 230172 is 271032.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

230172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9579 + ... + 9602.

It is an arithmetic number, because the mean of its divisors is an integer number (44758).

2230172 is an apocalyptic number.

It is an amenable number.

230172 is an abundant number, since it is smaller than the sum of its proper divisors (306924).

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

230172 is a wasteful number, since it uses less digits than its factorization.

230172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19188 (or 19186 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 230172 is about 479.7624412144. The cubic root of 230172 is about 61.2845258629.

The spelling of 230172 in words is "two hundred thirty thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 19181 38362 57543 76724 115086 230172