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27010081 = 73858583
BaseRepresentation
bin110011100001…
…0010000100001
31212211020212101
41213002100201
523403310311
62402530401
7445403410
oct147022041
955736771
1027010081
111427908a
129066a01
1357990c7
143831477
152587ec1
hex19c2421

27010081 has 4 divisors (see below), whose sum is σ = 30868672. Its totient is φ = 23151492.

The previous prime is 27010003. The next prime is 27010147. The reversal of 27010081 is 18001072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27010081 - 213 = 27001889 is a prime.

It is a super-2 number, since 2×270100812 = 1459088951253122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27010681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1929285 + ... + 1929298.

It is an arithmetic number, because the mean of its divisors is an integer number (7717168).

Almost surely, 227010081 is an apocalyptic number.

It is an amenable number.

27010081 is a deficient number, since it is larger than the sum of its proper divisors (3858591).

27010081 is an equidigital number, since it uses as much as digits as its factorization.

27010081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858590.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 27010081 is about 5197.1223768543. The cubic root of 27010081 is about 300.0373323912.

Subtracting from 27010081 its reverse (18001072), we obtain a palindrome (9009009).

The spelling of 27010081 in words is "twenty-seven million, ten thousand, eighty-one".

Divisors: 1 7 3858583 27010081