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27052909 = 137572749
BaseRepresentation
bin110011100110…
…0101101101101
31212220102121121
41213030231231
523411143114
62403500541
7445642312
oct147145555
955812547
1027052909
11142a8284
129087751
1357b2750
143842d09
152595a24
hex19ccb6d

27052909 has 8 divisors (see below), whose sum is σ = 29183000. Its totient is φ = 24929856.

The previous prime is 27052901. The next prime is 27052981. The reversal of 27052909 is 90925072.

It can be written as a sum of positive squares in 4 ways, for example, as 44100 + 27008809 = 210^2 + 5197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27052909 - 23 = 27052901 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27052901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8467 + ... + 11215.

It is an arithmetic number, because the mean of its divisors is an integer number (3647875).

Almost surely, 227052909 is an apocalyptic number.

It is an amenable number.

27052909 is a deficient number, since it is larger than the sum of its proper divisors (2130091).

27052909 is a wasteful number, since it uses less digits than its factorization.

27052909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 27052909 is about 5201.2411018910. The cubic root of 27052909 is about 300.1958313983.

The spelling of 27052909 in words is "twenty-seven million, fifty-two thousand, nine hundred nine".

Divisors: 1 13 757 2749 9841 35737 2080993 27052909