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27028806 = 2371574099
BaseRepresentation
bin110011100011…
…0110101000110
31212212012112220
41213012311012
523404410211
62403153210
7445512120
oct147066506
955765486
1027028806
1114291162
129075806
1357a479c
143838210
15258d806
hex19c6d46

27028806 has 32 divisors (see below), whose sum is σ = 62188800. Its totient is φ = 7671456.

The previous prime is 27028801. The next prime is 27028819. The reversal of 27028806 is 60882072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27028801) 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 15 ways as a sum of consecutive naturals, for example, 4545 + ... + 8643.

It is an arithmetic number, because the mean of its divisors is an integer number (1943400).

Almost surely, 227028806 is an apocalyptic number.

27028806 is an abundant number, since it is smaller than the sum of its proper divisors (35159994).

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

27028806 is a wasteful number, since it uses less digits than its factorization.

27028806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 27028806 is about 5198.9235424268. The cubic root of 27028806 is about 300.1066509696.

The spelling of 27028806 in words is "twenty-seven million, twenty-eight thousand, eight hundred six".

Divisors: 1 2 3 6 7 14 21 42 157 314 471 942 1099 2198 3297 4099 6594 8198 12297 24594 28693 57386 86079 172158 643543 1287086 1930629 3861258 4504801 9009602 13514403 27028806