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27664014 = 237719277
BaseRepresentation
bin110100110000…
…1111010001110
31221001110220010
41221201322032
524040222024
62424534050
7454066050
oct151417216
957043803
1027664014
1114685424
129321326
135967951
1439618d0
152666b29
hex1a61e8e

27664014 has 32 divisors (see below), whose sum is σ = 64129536. Its totient is φ = 7791840.

The previous prime is 27664003. The next prime is 27664027. The reversal of 27664014 is 41046672.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 1657 + ... + 7620.

It is an arithmetic number, because the mean of its divisors is an integer number (2004048).

Almost surely, 227664014 is an apocalyptic number.

27664014 is an abundant number, since it is smaller than the sum of its proper divisors (36465522).

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

27664014 is a wasteful number, since it uses less digits than its factorization.

27664014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9360.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 27664014 is about 5259.6591144294. The cubic root of 27664014 is about 302.4394214235.

The spelling of 27664014 in words is "twenty-seven million, six hundred sixty-four thousand, fourteen".

Divisors: 1 2 3 6 7 14 21 42 71 142 213 426 497 994 1491 2982 9277 18554 27831 55662 64939 129878 194817 389634 658667 1317334 1976001 3952002 4610669 9221338 13832007 27664014