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192438 = 23210691
BaseRepresentation
bin101110111110110110
3100202222100
4232332312
522124223
64042530
71431021
oct567666
9322870
10192438
11121644
1293446
136978c
14501b8
153c043
hex2efb6

192438 has 12 divisors (see below), whose sum is σ = 416988. Its totient is φ = 64140.

The previous prime is 192431. The next prime is 192461. The reversal of 192438 is 834291.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 192438.

It is not an unprimeable number, because it can be changed into a prime (192431) by changing a digit.

192438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5328 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (34749).

2192438 is an apocalyptic number.

192438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

192438 is an abundant number, since it is smaller than the sum of its proper divisors (224550).

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

192438 is a wasteful number, since it uses less digits than its factorization.

192438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10699 (or 10696 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 192438 is about 438.6775581221. The cubic root of 192438 is about 57.7338179207.

It can be divided in two parts, 192 and 438, that added together give a triangular number (630 = T35).

The spelling of 192438 in words is "one hundred ninety-two thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 10691 21382 32073 64146 96219 192438