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27792085 = 55558417
BaseRepresentation
bin110101000000…
…1001011010101
31221021222120111
41222001023111
524103321320
62431403021
7455141326
oct152011325
957258514
1027792085
1114762672
129383471
1359b1029
14399644d
15268ea5a
hex1a812d5

27792085 has 4 divisors (see below), whose sum is σ = 33350508. Its totient is φ = 22233664.

The previous prime is 27792071. The next prime is 27792101. The reversal of 27792085 is 58029772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5447556 + 22344529 = 2334^2 + 4727^2 .

It is a cyclic number.

It is not a de Polignac number, because 27792085 - 213 = 27783893 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

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, 2779204 + ... + 2779213.

It is an arithmetic number, because the mean of its divisors is an integer number (8337627).

Almost surely, 227792085 is an apocalyptic number.

It is an amenable number.

27792085 is a deficient number, since it is larger than the sum of its proper divisors (5558423).

27792085 is an equidigital number, since it uses as much as digits as its factorization.

27792085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558422.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 27792085 is about 5271.8198944956. The cubic root of 27792085 is about 302.9054191105.

The spelling of 27792085 in words is "twenty-seven million, seven hundred ninety-two thousand, eighty-five".

Divisors: 1 5 5558417 27792085