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27289052 = 22731149211
BaseRepresentation
bin110100000011…
…0010111011100
31220100102112122
41220012113130
523441222202
62412522112
7450644630
oct150062734
956312478
1027289052
111444973a
129180338
13586608b
1438a4dc0
1525e09a2
hex1a065dc

27289052 has 48 divisors (see below), whose sum is σ = 56985600. Its totient is φ = 11188800.

The previous prime is 27289027. The next prime is 27289057. The reversal of 27289052 is 25098272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27289057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129227 + ... + 129437.

It is an arithmetic number, because the mean of its divisors is an integer number (1187200).

Almost surely, 227289052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27289052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28492800).

27289052 is an abundant number, since it is smaller than the sum of its proper divisors (29696548).

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

27289052 is a wasteful number, since it uses less digits than its factorization.

27289052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 27289052 is about 5223.8924184941. The cubic root of 27289052 is about 301.0667651737.

The spelling of 27289052 in words is "twenty-seven million, two hundred eighty-nine thousand, fifty-two".

Divisors: 1 2 4 7 14 28 31 62 124 149 211 217 298 422 434 596 844 868 1043 1477 2086 2954 4172 4619 5908 6541 9238 13082 18476 26164 31439 32333 45787 62878 64666 91574 125756 129332 183148 220073 440146 880292 974609 1949218 3898436 6822263 13644526 27289052