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27013345 = 5191811571
BaseRepresentation
bin110011100001…
…1000011100001
31212211102100021
41213003003201
523403411340
62402553441
7445416052
oct147030341
955742307
1027013345
1114280587
129068881
13579a738
143832729
152588e4a
hex19c30e1

27013345 has 16 divisors (see below), whose sum is σ = 34332480. Its totient is φ = 20347200.

The previous prime is 27013313. The next prime is 27013351. The reversal of 27013345 is 54331072.

It is not a de Polignac number, because 27013345 - 25 = 27013313 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 16410 + ... + 17980.

It is an arithmetic number, because the mean of its divisors is an integer number (2145780).

Almost surely, 227013345 is an apocalyptic number.

It is an amenable number.

27013345 is a deficient number, since it is larger than the sum of its proper divisors (7319135).

27013345 is a wasteful number, since it uses less digits than its factorization.

27013345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 27013345 is about 5197.4363872971. The cubic root of 27013345 is about 300.0494177851.

The spelling of 27013345 in words is "twenty-seven million, thirteen thousand, three hundred forty-five".

Divisors: 1 5 19 95 181 905 1571 3439 7855 17195 29849 149245 284351 1421755 5402669 27013345