Search a number
-
+
12806861414 = 26403430707
BaseRepresentation
bin10111110110101100…
…10011001001100110
31020001112100222010112
423323112103021212
5202212024031124
65514451253022
7632236345244
oct137326231146
936045328115
1012806861414
115482159596
122594baa172
13129137a809
14896c51794
154ee50090e
hex2fb593266

12806861414 has 4 divisors (see below), whose sum is σ = 19210292124. Its totient is φ = 6403430706.

The previous prime is 12806861407. The next prime is 12806861437. The reversal of 12806861414 is 41416860821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201715352 + ... + 3201715355.

It is an arithmetic number, because the mean of its divisors is an integer number (4802573031).

Almost surely, 212806861414 is an apocalyptic number.

12806861414 is a deficient number, since it is larger than the sum of its proper divisors (6403430710).

12806861414 is an equidigital number, since it uses as much as digits as its factorization.

12806861414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403430709.

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 12806861414 in words is "twelve billion, eight hundred six million, eight hundred sixty-one thousand, four hundred fourteen".

Divisors: 1 2 6403430707 12806861414