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12364681 = 7892223
BaseRepresentation
bin101111001010…
…101110001001
3212021012011011
4233022232021
511131132211
61121003521
7210045430
oct57125611
925235134
1012364681
116a8584a
1241835a1
13273bca4
1418dc117
151143921
hexbcab89

12364681 has 12 divisors (see below), whose sum is σ = 14355712. Its totient is φ = 10432224.

The previous prime is 12364673. The next prime is 12364699. The reversal of 12364681 is 18646321.

It is a happy number.

It is not a de Polignac number, because 12364681 - 23 = 12364673 is a prime.

It is a super-2 number, since 2×123646812 = 305770672463522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12364601) 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 11 ways as a sum of consecutive naturals, for example, 55336 + ... + 55558.

Almost surely, 212364681 is an apocalyptic number.

It is an amenable number.

12364681 is a deficient number, since it is larger than the sum of its proper divisors (1991031).

12364681 is an frugal number, since it uses more digits than its factorization.

12364681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 319 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 12364681 is about 3516.3448351946. The cubic root of 12364681 is about 231.2389411804.

The spelling of 12364681 in words is "twelve million, three hundred sixty-four thousand, six hundred eighty-one".

Divisors: 1 7 89 223 623 1561 7921 19847 55447 138929 1766383 12364681