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289020982 = 2672156873
BaseRepresentation
bin10001001110100…
…001110000110110
3202010211210020211
4101032201300312
51042442132412
644402420034
710106431525
oct2116416066
9663753224
10289020982
11139165818
128096161a
1347b55743
142a5564bc
151a590ca7
hex113a1c36

289020982 has 8 divisors (see below), whose sum is σ = 440002296. Its totient is φ = 142353552.

The previous prime is 289020971. The next prime is 289020983.

It is a happy number.

289020982 is nontrivially palindromic in base 10.

289020982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289020983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1078303 + ... + 1078570.

It is an arithmetic number, because the mean of its divisors is an integer number (55000287).

Almost surely, 2289020982 is an apocalyptic number.

289020982 is a deficient number, since it is larger than the sum of its proper divisors (150981314).

289020982 is a wasteful number, since it uses less digits than its factorization.

289020982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156942.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 289020982 is about 17000.6171064465. The cubic root of 289020982 is about 661.1649017196.

The spelling of 289020982 in words is "two hundred eighty-nine million, twenty thousand, nine hundred eighty-two".

Divisors: 1 2 67 134 2156873 4313746 144510491 289020982