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17984122713 = 33719381389
BaseRepresentation
bin10000101111111011…
…111110111101011001
31201102100022002111000
4100233323332331121
5243312413411323
612132314055213
71204443343434
oct205773767531
951370262430
1017984122713
117699628637
12359aa1a509
131907b6183b
14c2869681b
15703cbde43
hex42fefef59

17984122713 has 16 divisors (see below), whose sum is σ = 27018403200. Its totient is φ = 11820548880.

The previous prime is 17984122697. The next prime is 17984122733. The reversal of 17984122713 is 31722148971.

It is not a de Polignac number, because 17984122713 - 24 = 17984122697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17984122733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4688778 + ... + 4692611.

It is an arithmetic number, because the mean of its divisors is an integer number (1688650200).

Almost surely, 217984122713 is an apocalyptic number.

It is an amenable number.

17984122713 is a deficient number, since it is larger than the sum of its proper divisors (9034280487).

17984122713 is an equidigital number, since it uses as much as digits as its factorization.

17984122713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9381469 (or 9381463 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The spelling of 17984122713 in words is "seventeen billion, nine hundred eighty-four million, one hundred twenty-two thousand, seven hundred thirteen".

Divisors: 1 3 9 27 71 213 639 1917 9381389 28144167 84432501 253297503 666078619 1998235857 5994707571 17984122713