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12751075444 = 2219935944621
BaseRepresentation
bin10111110000000010…
…11111100001110100
31012220122101202011111
423320001133201310
5202103233403234
65505135444404
7630661232032
oct137001374164
935818352144
1012751075444
115453716788
12257a386704
131282947973
1488d68d552
154e9681664
hex2f805f874

12751075444 has 24 divisors (see below), whose sum is σ = 22489488000. Its totient is φ = 6325688160.

The previous prime is 12751075433. The next prime is 12751075483. The reversal of 12751075444 is 44457015721.

12751075444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12751075397 and 12751075406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263454 + ... + 308074.

It is an arithmetic number, because the mean of its divisors is an integer number (937062000).

Almost surely, 212751075444 is an apocalyptic number.

It is an amenable number.

12751075444 is a deficient number, since it is larger than the sum of its proper divisors (9738412556).

12751075444 is a wasteful number, since it uses less digits than its factorization.

12751075444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45183 (or 45181 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 12751075444 in words is "twelve billion, seven hundred fifty-one million, seventy-five thousand, four hundred forty-four".

Divisors: 1 2 4 199 359 398 718 796 1436 44621 71441 89242 142882 178484 285764 8879579 16018939 17759158 32037878 35518316 64075756 3187768861 6375537722 12751075444