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12385613 = 26634651
BaseRepresentation
bin101111001111…
…110101001101
3212022020212102
4233033311031
511132314423
61121244445
7210163442
oct57176515
925266772
1012385613
116a9a549
124193725
132748686
1419059c9
151149c28
hexbcfd4d

12385613 has 4 divisors (see below), whose sum is σ = 12392928. Its totient is φ = 12378300.

The previous prime is 12385609. The next prime is 12385619. The reversal of 12385613 is 31658321.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12385613 - 22 = 12385609 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 (12385619) 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, 338 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (3098232).

Almost surely, 212385613 is an apocalyptic number.

It is an amenable number.

12385613 is a deficient number, since it is larger than the sum of its proper divisors (7315).

12385613 is an equidigital number, since it uses as much as digits as its factorization.

12385613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7314.

The product of its digits is 4320, while the sum is 29.

The square root of 12385613 is about 3519.3199627201. The cubic root of 12385613 is about 231.3693547007.

The spelling of 12385613 in words is "twelve million, three hundred eighty-five thousand, six hundred thirteen".

Divisors: 1 2663 4651 12385613