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27295489 = 13171131093
BaseRepresentation
bin110100000011…
…1111100000001
31220100202101001
41220013330001
523441423424
62413012001
7451002454
oct150077401
956322331
1027295489
1114453561
129184001
135868ca0
1438a749b
1525e2844
hex1a07f01

27295489 has 16 divisors (see below), whose sum is σ = 31428432. Its totient is φ = 23482368.

The previous prime is 27295483. The next prime is 27295501. The reversal of 27295489 is 98459272.

It can be written as a sum of positive squares in 8 ways, for example, as 47089 + 27248400 = 217^2 + 5220^2 .

It is not a de Polignac number, because 27295489 - 23 = 27295481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27295481) 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 15 ways as a sum of consecutive naturals, for example, 24427 + ... + 25519.

It is an arithmetic number, because the mean of its divisors is an integer number (1964277).

Almost surely, 227295489 is an apocalyptic number.

It is an amenable number.

27295489 is a deficient number, since it is larger than the sum of its proper divisors (4132943).

27295489 is a wasteful number, since it uses less digits than its factorization.

27295489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its digits is 362880, while the sum is 46.

The square root of 27295489 is about 5224.5084936289. The cubic root of 27295489 is about 301.0904354037.

The spelling of 27295489 in words is "twenty-seven million, two hundred ninety-five thousand, four hundred eighty-nine".

Divisors: 1 13 17 113 221 1093 1469 1921 14209 18581 24973 123509 241553 1605617 2099653 27295489