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19090675086 = 237264934269
BaseRepresentation
bin10001110001111001…
…001001010110001110
31211021110110202222020
4101301321021112032
5303044203100321
612434203231010
71244041026600
oct216171112616
954243422866
1019090675086
11810720882a
123849518466
131a53197a62
14cd161d170
1576aeeb4c6
hex471e4958e

19090675086 has 24 divisors (see below), whose sum is σ = 44415040680. Its totient is φ = 5454478512.

The previous prime is 19090675069. The next prime is 19090675117. The reversal of 19090675086 is 68057609091.

It is a super-2 number, since 2×190906750862 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 32466841 + ... + 32467428.

It is an arithmetic number, because the mean of its divisors is an integer number (1850626695).

Almost surely, 219090675086 is an apocalyptic number.

19090675086 is an abundant number, since it is smaller than the sum of its proper divisors (25324365594).

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

19090675086 is a wasteful number, since it uses less digits than its factorization.

19090675086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64934288 (or 64934281 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 19090675086 in words is "nineteen billion, ninety million, six hundred seventy-five thousand, eighty-six".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 64934269 129868538 194802807 389605614 454539883 909079766 1363619649 2727239298 3181779181 6363558362 9545337543 19090675086