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27445136 = 242959149
BaseRepresentation
bin110100010110…
…0011110010000
31220122100122112
41220230132100
524011221021
62420124452
7452164655
oct150543620
956570575
1027445136
1114545a34
129236728
1358bc134
143905c2c
152621d5b
hex1a2c790

27445136 has 20 divisors (see below), whose sum is σ = 55009500. Its totient is φ = 13249152.

The previous prime is 27445129. The next prime is 27445147. The reversal of 27445136 is 63154472.

It can be written as a sum of positive squares in 2 ways, for example, as 22848400 + 4596736 = 4780^2 + 2144^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 29111 + ... + 30038.

It is an arithmetic number, because the mean of its divisors is an integer number (2750475).

Almost surely, 227445136 is an apocalyptic number.

It is an amenable number.

27445136 is an abundant number, since it is smaller than the sum of its proper divisors (27564364).

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

27445136 is a wasteful number, since it uses less digits than its factorization.

27445136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59186 (or 59180 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 27445136 is about 5238.8105520242. The cubic root of 27445136 is about 301.6396737580.

The spelling of 27445136 in words is "twenty-seven million, four hundred forty-five thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 29 58 116 232 464 59149 118298 236596 473192 946384 1715321 3430642 6861284 13722568 27445136