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19795128882 = 2317194069891
BaseRepresentation
bin10010011011111000…
…011011001000110010
31220002120000201220120
4102123320123020302
5311020023111012
613032130151110
71300353551004
oct223370331062
956076021816
1019795128882
11843891a351
123a05422496
131b36106419
14d5add6374
157acc9d58c
hex49be1b232

19795128882 has 16 divisors (see below), whose sum is σ = 41919096672. Its totient is φ = 6210236480.

The previous prime is 19795128839. The next prime is 19795128901. The reversal of 19795128882 is 28882159791.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 97034844 + ... + 97035047.

It is an arithmetic number, because the mean of its divisors is an integer number (2619943542).

Almost surely, 219795128882 is an apocalyptic number.

19795128882 is an abundant number, since it is smaller than the sum of its proper divisors (22123967790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19795128882 is a wasteful number, since it uses less digits than its factorization.

19795128882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194069913.

The product of its digits is 5806080, while the sum is 60.

The spelling of 19795128882 in words is "nineteen billion, seven hundred ninety-five million, one hundred twenty-eight thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 17 34 51 102 194069891 388139782 582209673 1164419346 3299188147 6598376294 9897564441 19795128882