Base | Representation |
---|---|
bin | 110000110110… |
… | …101001100001 |
3 | 220002122120012 |
4 | 300312221201 |
5 | 11234304003 |
6 | 1134254305 |
7 | 213566321 |
oct | 60665141 |
9 | 26078505 |
10 | 12806753 |
11 | 72579a3 |
12 | 4357395 |
13 | 286527b |
14 | 19b5281 |
15 | 11ce8d8 |
hex | c36a61 |
12806753 has 4 divisors (see below), whose sum is σ = 12833328. Its totient is φ = 12780180.
The previous prime is 12806749. The next prime is 12806861. The reversal of 12806753 is 35760821.
It is a happy number.
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, and also an emirpimes, since its reverse is a distinct semiprime: 35760821 = 43 ⋅831647.
It is a cyclic number.
It is not a de Polignac number, because 12806753 - 22 = 12806749 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12806713) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12551 + ... + 13532.
It is an arithmetic number, because the mean of its divisors is an integer number (3208332).
Almost surely, 212806753 is an apocalyptic number.
It is an amenable number.
12806753 is a deficient number, since it is larger than the sum of its proper divisors (26575).
12806753 is an equidigital number, since it uses as much as digits as its factorization.
12806753 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26574.
The product of its (nonzero) digits is 10080, while the sum is 32.
The square root of 12806753 is about 3578.6523999964. The cubic root of 12806753 is about 233.9625490993.
The spelling of 12806753 in words is "twelve million, eight hundred six thousand, seven hundred fifty-three".
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