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19829106980 = 225991455349
BaseRepresentation
bin10010011101111010…
…000010100100100100
31220011220222000002122
4102131322002210210
5311102222410410
613035342325112
71301245425344
oct223572024444
956156860078
1019829106980
118456017621
123a14889798
131b40171cc7
14d6171cd24
157b0c60e55
hex49de82924

19829106980 has 12 divisors (see below), whose sum is σ = 41641124700. Its totient is φ = 7931642784.

The previous prime is 19829106967. The next prime is 19829107021. The reversal of 19829106980 is 8960192891.

It can be written as a sum of positive squares in 2 ways, for example, as 8810825956 + 11018281024 = 93866^2 + 104968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495727655 + ... + 495727694.

It is an arithmetic number, because the mean of its divisors is an integer number (3470093725).

Almost surely, 219829106980 is an apocalyptic number.

19829106980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19829106980 is an abundant number, since it is smaller than the sum of its proper divisors (21812017720).

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

19829106980 is a wasteful number, since it uses less digits than its factorization.

19829106980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991455358 (or 991455356 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 53.

The spelling of 19829106980 in words is "nineteen billion, eight hundred twenty-nine million, one hundred six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 991455349 1982910698 3965821396 4957276745 9914553490 19829106980