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17982206829 = 3218111038801
BaseRepresentation
bin10000101111110100…
…101011001101101101
31201102012200202101100
4100233310223031231
5243311421104304
612132205033313
71204421143656
oct205764531555
951365622340
1017982206829
11769853a164
12359a255839
131907640792
14c2831852d
15703a41439
hex42fd2b36d

17982206829 has 12 divisors (see below), whose sum is σ = 26117805532. Its totient is φ = 11921904000.

The previous prime is 17982206791. The next prime is 17982206833. The reversal of 17982206829 is 92860228971.

It can be written as a sum of positive squares in 2 ways, for example, as 3116988900 + 14865217929 = 55830^2 + 121923^2 .

It is not a de Polignac number, because 17982206829 - 27 = 17982206701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17982206029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5517772 + ... + 5521029.

Almost surely, 217982206829 is an apocalyptic number.

It is an amenable number.

17982206829 is a deficient number, since it is larger than the sum of its proper divisors (8135598703).

17982206829 is a wasteful number, since it uses less digits than its factorization.

17982206829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11038988 (or 11038985 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 17982206829 in words is "seventeen billion, nine hundred eighty-two million, two hundred six thousand, eight hundred twenty-nine".

Divisors: 1 3 9 181 543 1629 11038801 33116403 99349209 1998022981 5994068943 17982206829