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134672 = 2419443
BaseRepresentation
bin100000111000010000
320211201212
4200320100
513302142
62515252
71100426
oct407020
9224655
10134672
11921aa
1265b28
13493b5
1437116
1529d82
hex20e10

134672 has 20 divisors (see below), whose sum is σ = 275280. Its totient is φ = 63648.

The previous prime is 134669. The next prime is 134677. The reversal of 134672 is 276431.

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 not an unprimeable number, because it can be changed into a prime (134677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83 + ... + 525.

It is an arithmetic number, because the mean of its divisors is an integer number (13764).

2134672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137640).

134672 is an abundant number, since it is smaller than the sum of its proper divisors (140608).

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

134672 is a wasteful number, since it uses less digits than its factorization.

134672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 464 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 134672 is about 366.9768385062. The cubic root of 134672 is about 51.2576986254.

The spelling of 134672 in words is "one hundred thirty-four thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 19 38 76 152 304 443 886 1772 3544 7088 8417 16834 33668 67336 134672