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52289155889 = 2912171481573
BaseRepresentation
bin110000101100101011…
…010011001100110001
311222222010021100011022
4300230223103030301
51324042010442024
640004334025225
73530526330425
oct605453231461
9158863240138
1052289155889
11201a2957823
12a173648215
134c140b9039
142760778b85
15156082335e
hexc2cad3331

52289155889 has 8 divisors (see below), whose sum is σ = 54136713960. Its totient is φ = 50444563456.

The previous prime is 52289155843. The next prime is 52289155913. The reversal of 52289155889 is 98855198225.

It can be written as a sum of positive squares in 4 ways, for example, as 21481885489 + 30807270400 = 146567^2 + 175520^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52289155889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52289175889) by changing a digit.

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, 705494 + ... + 776079.

It is an arithmetic number, because the mean of its divisors is an integer number (6767089245).

Almost surely, 252289155889 is an apocalyptic number.

It is an amenable number.

52289155889 is a deficient number, since it is larger than the sum of its proper divisors (1847558071).

52289155889 is a wasteful number, since it uses less digits than its factorization.

52289155889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482819.

The product of its digits is 20736000, while the sum is 62.

The spelling of 52289155889 in words is "fifty-two billion, two hundred eighty-nine million, one hundred fifty-five thousand, eight hundred eighty-nine".

Divisors: 1 29 1217 35293 1481573 42965617 1803074341 52289155889