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12322693 = 28143853
BaseRepresentation
bin101111000000…
…011110000101
3212012001120001
4233000132011
511123311233
61120041301
7206512135
oct57003605
925161501
1012322693
116a57249
124163231
132725b46
1418caac5
15113627d
hexbc0785

12322693 has 4 divisors (see below), whose sum is σ = 12366828. Its totient is φ = 12278560.

The previous prime is 12322691. The next prime is 12322699. The reversal of 12322693 is 39622321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39622321 = 193205297.

It can be written as a sum of positive squares in 2 ways, for example, as 4743684 + 7579009 = 2178^2 + 2753^2 .

It is a cyclic number.

It is not a de Polignac number, because 12322693 - 21 = 12322691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322691) 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, 21646 + ... + 22207.

It is an arithmetic number, because the mean of its divisors is an integer number (3091707).

Almost surely, 212322693 is an apocalyptic number.

It is an amenable number.

12322693 is a deficient number, since it is larger than the sum of its proper divisors (44135).

12322693 is an equidigital number, since it uses as much as digits as its factorization.

12322693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44134.

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

The square root of 12322693 is about 3510.3693537860. The cubic root of 12322693 is about 230.9768971729.

The spelling of 12322693 in words is "twelve million, three hundred twenty-two thousand, six hundred ninety-three".

Divisors: 1 281 43853 12322693