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12371684 = 221353672
BaseRepresentation
bin101111001100…
…011011100100
3212021112202112
4233030123210
511131343214
61121100152
7210105023
oct57143344
925245675
1012371684
116a90036
124187658
132742230
1419008ba
151145a3e
hexbcc6e4

12371684 has 36 divisors (see below), whose sum is σ = 24115644. Its totient is φ = 5518656.

The previous prime is 12371683. The next prime is 12371687. The reversal of 12371684 is 48617321.

It can be written as a sum of positive squares in 2 ways, for example, as 5189284 + 7182400 = 2278^2 + 2680^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12371684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12371683) 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, 184619 + ... + 184685.

It is an arithmetic number, because the mean of its divisors is an integer number (669879).

Almost surely, 212371684 is an apocalyptic number.

It is an amenable number.

12371684 is a deficient number, since it is larger than the sum of its proper divisors (11743960).

12371684 is a wasteful number, since it uses less digits than its factorization.

12371684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 135 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 12371684 is about 3517.3404725730. The cubic root of 12371684 is about 231.2825886383.

The spelling of 12371684 in words is "twelve million, three hundred seventy-one thousand, six hundred eighty-four".

Divisors: 1 2 4 13 26 52 53 67 106 134 212 268 689 871 1378 1742 2756 3484 3551 4489 7102 8978 14204 17956 46163 58357 92326 116714 184652 233428 237917 475834 951668 3092921 6185842 12371684