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19168783058 = 2174397128221
BaseRepresentation
bin10001110110100011…
…000110101011010010
31211110220110001222002
4101312203012223102
5303224202024213
612450033314002
71246006652615
oct216643065322
954426401862
1019168783058
118147307477
12386b705902
131a66414ba9
14cdbb5217c
15772cc9658
hex4768c6ad2

19168783058 has 16 divisors (see below), whose sum is σ = 30451699224. Its totient is φ = 9018481920.

The previous prime is 19168782991. The next prime is 19168783063. The reversal of 19168783058 is 85038786191.

It can be written as a sum of positive squares in 4 ways, for example, as 17890935049 + 1277848009 = 133757^2 + 35747^2 .

It is a super-3 number, since 3×191687830583 (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19168782994 and 19168783012.

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, 85388 + ... + 213608.

Almost surely, 219168783058 is an apocalyptic number.

19168783058 is a deficient number, since it is larger than the sum of its proper divisors (11282916166).

19168783058 is a wasteful number, since it uses less digits than its factorization.

19168783058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132637.

The product of its (nonzero) digits is 2903040, while the sum is 56.

The spelling of 19168783058 in words is "nineteen billion, one hundred sixty-eight million, seven hundred eighty-three thousand, fifty-eight".

Divisors: 1 2 17 34 4397 8794 74749 128221 149498 256442 2179757 4359514 563787737 1127575474 9584391529 19168783058