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27315313 = 181115083
BaseRepresentation
bin110100000110…
…0110001110001
31220101202120021
41220030301301
523443042223
62413243441
7451114324
oct150146161
956352507
1027315313
1114467443
129193581
13587500c
1438b07bb
1525e865d
hex1a0cc71

27315313 has 4 divisors (see below), whose sum is σ = 27332208. Its totient is φ = 27298420.

The previous prime is 27315271. The next prime is 27315317. The reversal of 27315313 is 31351372.

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 a cyclic number.

It is not a de Polignac number, because 27315313 - 221 = 25218161 is a prime.

It is a super-2 number, since 2×273153132 = 1492252648575938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27315317) 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, 5731 + ... + 9352.

It is an arithmetic number, because the mean of its divisors is an integer number (6833052).

Almost surely, 227315313 is an apocalyptic number.

It is an amenable number.

27315313 is a deficient number, since it is larger than the sum of its proper divisors (16895).

27315313 is a wasteful number, since it uses less digits than its factorization.

27315313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16894.

The product of its digits is 1890, while the sum is 25.

The square root of 27315313 is about 5226.4053612402. The cubic root of 27315313 is about 301.1633091347.

Adding to 27315313 its reverse (31351372), we get a palindrome (58666685).

The spelling of 27315313 in words is "twenty-seven million, three hundred fifteen thousand, three hundred thirteen".

Divisors: 1 1811 15083 27315313