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289525982 = 21311105061
BaseRepresentation
bin10001010000011…
…101000011011110
3202011210102222112
4101100131003132
51043104312412
644421314022
710113634034
oct2120350336
9664712875
10289525982
11139480179
1280b65912
1347ca1565
142a648554
151a640722
hex1141d0de

289525982 has 8 divisors (see below), whose sum is σ = 437604552. Its totient is φ = 143657800.

The previous prime is 289525981. The next prime is 289526071.

289525982 is nontrivially palindromic in base 10.

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

It is a self number, because there is not a number n which added to its sum of digits gives 289525982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289525981) 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, 552269 + ... + 552792.

It is an arithmetic number, because the mean of its divisors is an integer number (54700569).

Almost surely, 2289525982 is an apocalyptic number.

289525982 is a deficient number, since it is larger than the sum of its proper divisors (148078570).

289525982 is a wasteful number, since it uses less digits than its factorization.

289525982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105194.

The product of its digits is 1036800, while the sum is 50.

The square root of 289525982 is about 17015.4630263181. The cubic root of 289525982 is about 661.5497572831.

The spelling of 289525982 in words is "two hundred eighty-nine million, five hundred twenty-five thousand, nine hundred eighty-two".

Divisors: 1 2 131 262 1105061 2210122 144762991 289525982