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27495445 = 56190149
BaseRepresentation
bin110100011100…
…0110000010101
31220201220122211
41220320300111
524014323240
62421153421
7452464435
oct150706025
956656584
1027495445
111457a80a
12925b871
135908cc3
14391a2c5
152631bea
hex1a38c15

27495445 has 8 divisors (see below), whose sum is σ = 33535800. Its totient is φ = 21635520.

The previous prime is 27495401. The next prime is 27495463. The reversal of 27495445 is 54459472.

It can be written as a sum of positive squares in 4 ways, for example, as 2184484 + 25310961 = 1478^2 + 5031^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-27495445 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27495398 and 27495407.

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 7 ways as a sum of consecutive naturals, for example, 44770 + ... + 45379.

It is an arithmetic number, because the mean of its divisors is an integer number (4191975).

Almost surely, 227495445 is an apocalyptic number.

It is an amenable number.

27495445 is a deficient number, since it is larger than the sum of its proper divisors (6040355).

27495445 is an equidigital number, since it uses as much as digits as its factorization.

27495445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90215.

The product of its digits is 201600, while the sum is 40.

The square root of 27495445 is about 5243.6099206558. The cubic root of 27495445 is about 301.8238706634.

The spelling of 27495445 in words is "twenty-seven million, four hundred ninety-five thousand, four hundred forty-five".

Divisors: 1 5 61 305 90149 450745 5499089 27495445