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12264631 = 68317957
BaseRepresentation
bin101110110010…
…010010110111
3212002002220121
4232302102313
511114432011
61114512411
7206150641
oct56622267
925062817
1012264631
116a17665
124135707
1327055a2
1418b3891
151123e71
hexbb24b7

12264631 has 4 divisors (see below), whose sum is σ = 12283272. Its totient is φ = 12245992.

The previous prime is 12264619. The next prime is 12264641. The reversal of 12264631 is 13646221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13646221 = 121711213.

It is a cyclic number.

It is not a de Polignac number, because 12264631 - 211 = 12262583 is a prime.

It is a super-2 number, since 2×122646312 = 300842347132322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12264596 and 12264605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12264601) 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, 8296 + ... + 9661.

It is an arithmetic number, because the mean of its divisors is an integer number (3070818).

Almost surely, 212264631 is an apocalyptic number.

12264631 is a deficient number, since it is larger than the sum of its proper divisors (18641).

12264631 is an equidigital number, since it uses as much as digits as its factorization.

12264631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18640.

The product of its digits is 1728, while the sum is 25.

The square root of 12264631 is about 3502.0895191300. The cubic root of 12264631 is about 230.6135539985.

The spelling of 12264631 in words is "twelve million, two hundred sixty-four thousand, six hundred thirty-one".

Divisors: 1 683 17957 12264631