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27685713 = 3111635147
BaseRepresentation
bin110100110011…
…1001101010001
31221002120122210
41221213031101
524041420323
62425222333
7454216236
oct151471521
957076583
1027685713
111469a760
1293319a9
1359747a3
14396978d
15266d293
hex1a67351

27685713 has 16 divisors (see below), whose sum is σ = 40525056. Its totient is φ = 16673040.

The previous prime is 27685703. The next prime is 27685753. The reversal of 27685713 is 31758672.

It is not a de Polignac number, because 27685713 - 25 = 27685681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27685703) by changing a digit.

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, 2806 + ... + 7952.

It is an arithmetic number, because the mean of its divisors is an integer number (2532816).

Almost surely, 227685713 is an apocalyptic number.

It is an amenable number.

27685713 is a deficient number, since it is larger than the sum of its proper divisors (12839343).

27685713 is a wasteful number, since it uses less digits than its factorization.

27685713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324.

The product of its digits is 70560, while the sum is 39.

The square root of 27685713 is about 5261.7214863579. The cubic root of 27685713 is about 302.5184762068.

The spelling of 27685713 in words is "twenty-seven million, six hundred eighty-five thousand, seven hundred thirteen".

Divisors: 1 3 11 33 163 489 1793 5147 5379 15441 56617 169851 838961 2516883 9228571 27685713