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27648713 = 34138101
BaseRepresentation
bin110100101111…
…0001011001001
31221000200220102
41221132023021
524034224323
62424335145
7454003331
oct151361311
957020812
1027648713
1114674984
1293144b5
1359609b1
14395a0c1
152662328
hex1a5e2c9

27648713 has 4 divisors (see below), whose sum is σ = 27660228. Its totient is φ = 27637200.

The previous prime is 27648707. The next prime is 27648739. The reversal of 27648713 is 31784672.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 27175369 + 473344 = 5213^2 + 688^2 .

It is a cyclic number.

It is not a de Polignac number, because 27648713 - 24 = 27648697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27648703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638 + ... + 7463.

It is an arithmetic number, because the mean of its divisors is an integer number (6915057).

Almost surely, 227648713 is an apocalyptic number.

It is an amenable number.

27648713 is a deficient number, since it is larger than the sum of its proper divisors (11515).

27648713 is an equidigital number, since it uses as much as digits as its factorization.

27648713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11514.

The product of its digits is 56448, while the sum is 38.

The square root of 27648713 is about 5258.2043512971. The cubic root of 27648713 is about 302.3836512687.

The spelling of 27648713 in words is "twenty-seven million, six hundred forty-eight thousand, seven hundred thirteen".

Divisors: 1 3413 8101 27648713