Base | Representation |
---|---|
bin | 10111110110100110… |
… | …00001000000110001 |
3 | 1020001110202020102211 |
4 | 23323103001000301 |
5 | 202211314010224 |
6 | 5514421012121 |
7 | 632226131656 |
oct | 137323010061 |
9 | 36043666384 |
10 | 12806000689 |
11 | 5481720949 |
12 | 2594854041 |
13 | 1291138b01 |
14 | 896aa9c2d |
15 | 4ee3d0894 |
hex | 2fb4c1031 |
12806000689 has 2 divisors, whose sum is σ = 12806000690. Its totient is φ = 12806000688.
The previous prime is 12806000621. The next prime is 12806000717. The reversal of 12806000689 is 98600060821.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10043447089 + 2762553600 = 100217^2 + 52560^2 .
It is a cyclic number.
It is not a de Polignac number, because 12806000689 - 27 = 12806000561 is a prime.
It is not a weakly prime, because it can be changed into another prime (12806070689) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403000344 + 6403000345.
It is an arithmetic number, because the mean of its divisors is an integer number (6403000345).
Almost surely, 212806000689 is an apocalyptic number.
It is an amenable number.
12806000689 is a deficient number, since it is larger than the sum of its proper divisors (1).
12806000689 is an equidigital number, since it uses as much as digits as its factorization.
12806000689 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 41472, while the sum is 40.
The spelling of 12806000689 in words is "twelve billion, eight hundred six million, six hundred eighty-nine", and thus it is an aban number.
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