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27668806 = 2114726759
BaseRepresentation
bin110100110001…
…1000101000110
31221001201110121
41221203011012
524040400211
62425012154
7454116034
oct151430506
957051417
1027668806
1114688a90
12932405a
135969b99
143963554
152668271
hex1a63146

27668806 has 16 divisors (see below), whose sum is σ = 46241280. Its totient is φ = 12308680.

The previous prime is 27668801. The next prime is 27668821. The reversal of 27668806 is 60886672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27668801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12346 + ... + 14413.

It is an arithmetic number, because the mean of its divisors is an integer number (2890080).

Almost surely, 227668806 is an apocalyptic number.

27668806 is a deficient number, since it is larger than the sum of its proper divisors (18572474).

27668806 is a wasteful number, since it uses less digits than its factorization.

27668806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26819.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 27668806 is about 5260.1146375341. The cubic root of 27668806 is about 302.4568834114.

The spelling of 27668806 in words is "twenty-seven million, six hundred sixty-eight thousand, eight hundred six".

Divisors: 1 2 11 22 47 94 517 1034 26759 53518 294349 588698 1257673 2515346 13834403 27668806