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158238 = 23259149
BaseRepresentation
bin100110101000011110
322001001200
4212220132
520030423
63220330
71226223
oct465036
9261050
10158238
11a8983
12776a6
1357042
144194a
1531d43
hex26a1e

158238 has 24 divisors (see below), whose sum is σ = 351000. Its totient is φ = 51504.

The previous prime is 158233. The next prime is 158243. The reversal of 158238 is 832851.

It is a happy number.

158238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (158233) and next prime (158243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 988 + ... + 1136.

It is an arithmetic number, because the mean of its divisors is an integer number (14625).

2158238 is an apocalyptic number.

158238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

158238 is an abundant number, since it is smaller than the sum of its proper divisors (192762).

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

158238 is a wasteful number, since it uses less digits than its factorization.

158238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 213 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 158238 is about 397.7914026220. The cubic root of 158238 is about 54.0883327933.

The spelling of 158238 in words is "one hundred fifty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 59 118 149 177 298 354 447 531 894 1062 1341 2682 8791 17582 26373 52746 79119 158238