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27468889 = 7171912149
BaseRepresentation
bin110100011001…
…0010001011001
31220200120020021
41220302101121
524013001024
62420430441
7452324140
oct150622131
956616207
1027468889
1114561868
129248421
1358c9ba6
143910757
152628de4
hex1a32459

27468889 has 16 divisors (see below), whose sum is σ = 34992000. Its totient is φ = 20991744.

The previous prime is 27468823. The next prime is 27468913. The reversal of 27468889 is 98886472.

It is a cyclic number.

It is not a de Polignac number, because 27468889 - 219 = 26944601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27468809) 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, 3814 + ... + 8335.

It is an arithmetic number, because the mean of its divisors is an integer number (2187000).

Almost surely, 227468889 is an apocalyptic number.

It is an amenable number.

27468889 is a deficient number, since it is larger than the sum of its proper divisors (7523111).

27468889 is a wasteful number, since it uses less digits than its factorization.

27468889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12192.

The product of its digits is 1548288, while the sum is 52.

The square root of 27468889 is about 5241.0770839590. The cubic root of 27468889 is about 301.7266689080.

The spelling of 27468889 in words is "twenty-seven million, four hundred sixty-eight thousand, eight hundred eighty-nine".

Divisors: 1 7 17 19 119 133 323 2261 12149 85043 206533 230831 1445731 1615817 3924127 27468889