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28545087286 = 270920130527
BaseRepresentation
bin11010100101011010…
…110111011100110110
32201200100121200100001
4122211122313130312
5431430020243121
621040300141514
72030242144552
oct324532673466
981610550301
1028545087286
1111118a59631
12564783789a
1328cbb2b0c1
14154b120862
15b21038991
hex6a56b7736

28545087286 has 8 divisors (see below), whose sum is σ = 42878024640. Its totient is φ = 14252412408.

The previous prime is 28545087229. The next prime is 28545087299. The reversal of 28545087286 is 68278054582.

28545087286 is digitally balanced in base 5, 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10063846 + ... + 10066681.

It is an arithmetic number, because the mean of its divisors is an integer number (5359753080).

Almost surely, 228545087286 is an apocalyptic number.

28545087286 is a deficient number, since it is larger than the sum of its proper divisors (14332937354).

28545087286 is a wasteful number, since it uses less digits than its factorization.

28545087286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20131238.

The product of its (nonzero) digits is 8601600, while the sum is 55.

The spelling of 28545087286 in words is "twenty-eight billion, five hundred forty-five million, eighty-seven thousand, two hundred eighty-six".

Divisors: 1 2 709 1418 20130527 40261054 14272543643 28545087286