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12934889 = 111175899
BaseRepresentation
bin110001010101…
…111011101001
3220100011022222
4301111323221
511302404024
61141123425
7214642022
oct61257351
926304288
1012934889
1173351a0
1243b9575
1328ab6a6
141a09c49
15120785e
hexc55ee9

12934889 has 4 divisors (see below), whose sum is σ = 14110800. Its totient is φ = 11758980.

The previous prime is 12934861. The next prime is 12934897. The reversal of 12934889 is 98843921.

It is a happy number.

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: 98843921 = 118985811.

It is a cyclic number.

It is not a de Polignac number, because 12934889 - 28 = 12934633 is a prime.

It is a super-2 number, since 2×129348892 = 334622706884642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12934849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587939 + ... + 587960.

It is an arithmetic number, because the mean of its divisors is an integer number (3527700).

Almost surely, 212934889 is an apocalyptic number.

It is an amenable number.

12934889 is a deficient number, since it is larger than the sum of its proper divisors (1175911).

12934889 is a wasteful number, since it uses less digits than its factorization.

12934889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175910.

The product of its digits is 124416, while the sum is 44.

The square root of 12934889 is about 3596.5106700801. The cubic root of 12934889 is about 234.7402532205.

The spelling of 12934889 in words is "twelve million, nine hundred thirty-four thousand, eight hundred eighty-nine".

Divisors: 1 11 1175899 12934889