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12304693 = 34935257
BaseRepresentation
bin101110111100…
…000100110101
3212011010212101
4232330010311
511122222233
61115422101
7206405512
oct56740465
925133771
1012304693
116a44775
124154931
13271a8ab
1418c4309
151130c7d
hexbbc135

12304693 has 4 divisors (see below), whose sum is σ = 12340300. Its totient is φ = 12269088.

The previous prime is 12304657. The next prime is 12304703. The reversal of 12304693 is 39640321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39640321 = 75662903.

It can be written as a sum of positive squares in 2 ways, for example, as 3678724 + 8625969 = 1918^2 + 2937^2 .

It is a cyclic number.

It is not a de Polignac number, because 12304693 - 29 = 12304181 is a prime.

It is a Duffinian number.

It is a plaindrome in base 5.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305693) 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, 17280 + ... + 17977.

It is an arithmetic number, because the mean of its divisors is an integer number (3085075).

Almost surely, 212304693 is an apocalyptic number.

It is an amenable number.

12304693 is a deficient number, since it is larger than the sum of its proper divisors (35607).

12304693 is an equidigital number, since it uses as much as digits as its factorization.

12304693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35606.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 12304693 is about 3507.8045840668. The cubic root of 12304693 is about 230.8643782035.

The spelling of 12304693 in words is "twelve million, three hundred four thousand, six hundred ninety-three".

Divisors: 1 349 35257 12304693