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289195134 = 23291662041
BaseRepresentation
bin10001001111001…
…100010001111110
3202011011122010220
4101033030101332
51043013221014
644410242210
710111055334
oct2117142176
9664148126
10289195134
11139274648
1280a26366
1347bb6aa7
142a59db54
151a5c76a9
hex113cc47e

289195134 has 16 divisors (see below), whose sum is σ = 598335120. Its totient is φ = 93074240.

The previous prime is 289195111. The next prime is 289195139. The reversal of 289195134 is 431591982.

289195134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289195139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830847 + ... + 831194.

It is an arithmetic number, because the mean of its divisors is an integer number (37395945).

Almost surely, 2289195134 is an apocalyptic number.

289195134 is an abundant number, since it is smaller than the sum of its proper divisors (309139986).

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

289195134 is a wasteful number, since it uses less digits than its factorization.

289195134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662075.

The product of its digits is 77760, while the sum is 42.

The square root of 289195134 is about 17005.7382668322. The cubic root of 289195134 is about 661.2976718620.

The spelling of 289195134 in words is "two hundred eighty-nine million, one hundred ninety-five thousand, one hundred thirty-four".

Divisors: 1 2 3 6 29 58 87 174 1662041 3324082 4986123 9972246 48199189 96398378 144597567 289195134