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12934913 = 61321101
BaseRepresentation
bin110001010101…
…111100000001
3220100011100212
4301111330001
511302404123
61141123505
7214642055
oct61257401
926304325
1012934913
117335212
1243b9595
1328ab6c4
141a09c65
151207878
hexc55f01

12934913 has 4 divisors (see below), whose sum is σ = 12956628. Its totient is φ = 12913200.

The previous prime is 12934903. The next prime is 12934927. The reversal of 12934913 is 31943921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31943921 = 191681259.

It can be written as a sum of positive squares in 2 ways, for example, as 984064 + 11950849 = 992^2 + 3457^2 .

It is a cyclic number.

It is not a de Polignac number, because 12934913 - 24 = 12934897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12934913.

It is not an unprimeable number, because it can be changed into a prime (12934903) 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, 9938 + ... + 11163.

It is an arithmetic number, because the mean of its divisors is an integer number (3239157).

Almost surely, 212934913 is an apocalyptic number.

It is an amenable number.

12934913 is a deficient number, since it is larger than the sum of its proper divisors (21715).

12934913 is an equidigital number, since it uses as much as digits as its factorization.

12934913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21714.

The product of its digits is 5832, while the sum is 32.

The square root of 12934913 is about 3596.5140066459. The cubic root of 12934913 is about 234.7403984031.

The spelling of 12934913 in words is "twelve million, nine hundred thirty-four thousand, nine hundred thirteen".

Divisors: 1 613 21101 12934913