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12806373 = 34268791
BaseRepresentation
bin110000110110…
…100011100101
3220002122001010
4300312203211
511234300443
61134252433
7213565236
oct60664345
926078033
1012806373
117257688
124357119
132865048
1419b508d
1511ce733
hexc368e5

12806373 has 4 divisors (see below), whose sum is σ = 17075168. Its totient is φ = 8537580.

The previous prime is 12806369. The next prime is 12806383. The reversal of 12806373 is 37360821.

12806373 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 12806373 - 22 = 12806369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12806373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12806383) 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, 2134393 + ... + 2134398.

It is an arithmetic number, because the mean of its divisors is an integer number (4268792).

Almost surely, 212806373 is an apocalyptic number.

It is an amenable number.

12806373 is a deficient number, since it is larger than the sum of its proper divisors (4268795).

12806373 is an equidigital number, since it uses as much as digits as its factorization.

12806373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268794.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 12806373 is about 3578.5993069915. The cubic root of 12806373 is about 233.9602350429.

The spelling of 12806373 in words is "twelve million, eight hundred six thousand, three hundred seventy-three".

Divisors: 1 3 4268791 12806373