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27642914 = 2131063189
BaseRepresentation
bin110100101110…
…0110000100010
31221000101221122
41221130300202
524034033124
62424252242
7453650405
oct151346042
957011848
1027642914
1114670592
129311082
13595b170
143957d3c
15266075e
hex1a5cc22

27642914 has 8 divisors (see below), whose sum is σ = 44653980. Its totient is φ = 12758256.

The previous prime is 27642911. The next prime is 27642919. The reversal of 27642914 is 41924672.

It can be written as a sum of positive squares in 2 ways, for example, as 27615025 + 27889 = 5255^2 + 167^2 .

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

It is a super-2 number, since 2×276429142 = 1528261388822792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27642911) by changing a digit.

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, 531569 + ... + 531620.

Almost surely, 227642914 is an apocalyptic number.

27642914 is a deficient number, since it is larger than the sum of its proper divisors (17011066).

27642914 is a wasteful number, since it uses less digits than its factorization.

27642914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063204.

The product of its digits is 24192, while the sum is 35.

The square root of 27642914 is about 5257.6528983949. The cubic root of 27642914 is about 302.3625092912.

The spelling of 27642914 in words is "twenty-seven million, six hundred forty-two thousand, nine hundred fourteen".

Divisors: 1 2 13 26 1063189 2126378 13821457 27642914