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238028 = 2278501
BaseRepresentation
bin111010000111001100
3110002111212
4322013030
530104103
65033552
72010650
oct720714
9402455
10238028
1115291a
12b58b8
138445b
1462a60
154a7d8
hex3a1cc

238028 has 12 divisors (see below), whose sum is σ = 476112. Its totient is φ = 102000.

The previous prime is 238019. The next prime is 238031. The reversal of 238028 is 820832.

238028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

238028 is an admirable number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 237994 and 238012.

It is an unprimeable number.

238028 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, 4223 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (39676).

2238028 is an apocalyptic number.

238028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

238028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

238028 is a wasteful number, since it uses less digits than its factorization.

238028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512 (or 8510 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 238028 is about 487.8811330642. The cubic root of 238028 is about 61.9739745088.

The spelling of 238028 in words is "two hundred thirty-eight thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 8501 17002 34004 59507 119014 238028