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12775089 = 34258363
BaseRepresentation
bin110000101110…
…111010110001
3220001001010110
4300232322301
511232300324
61133451533
7213405105
oct60567261
926031113
1012775089
117236128
124340ba9
132853a32
1419a7905
1511c5329
hexc2eeb1

12775089 has 4 divisors (see below), whose sum is σ = 17033456. Its totient is φ = 8516724.

The previous prime is 12775043. The next prime is 12775099. The reversal of 12775089 is 98057721.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98057721 = 332685907.

It is not a de Polignac number, because 12775089 - 28 = 12774833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12775099) 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, 2129179 + ... + 2129184.

It is an arithmetic number, because the mean of its divisors is an integer number (4258364).

Almost surely, 212775089 is an apocalyptic number.

It is an amenable number.

12775089 is a deficient number, since it is larger than the sum of its proper divisors (4258367).

12775089 is an equidigital number, since it uses as much as digits as its factorization.

12775089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258366.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 12775089 is about 3574.2256504032. The cubic root of 12775089 is about 233.7695700774.

The spelling of 12775089 in words is "twelve million, seven hundred seventy-five thousand, eighty-nine".

Divisors: 1 3 4258363 12775089