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18004627372 = 2215647287669
BaseRepresentation
bin10000110001001010…
…001100111110101100
31201110202212211120211
4100301022030332230
5243333141033442
612134325352204
71205112543664
oct206112147654
951422784524
1018004627372
1176aa163036
1235a5868664
13190c190884
14c2b2b31a4
157059be617
hex43128cfac

18004627372 has 12 divisors (see below), whose sum is σ = 31510221120. Its totient is φ = 9001707056.

The previous prime is 18004627369. The next prime is 18004627379. The reversal of 18004627372 is 27372640081.

It is not an unprimeable number, because it can be changed into a prime (18004627379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81247 + ... + 206422.

It is an arithmetic number, because the mean of its divisors is an integer number (2625851760).

Almost surely, 218004627372 is an apocalyptic number.

It is an amenable number.

18004627372 is a deficient number, since it is larger than the sum of its proper divisors (13505593748).

18004627372 is a wasteful number, since it uses less digits than its factorization.

18004627372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303320 (or 303318 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 18004627372 in words is "eighteen billion, four million, six hundred twenty-seven thousand, three hundred seventy-two".

Divisors: 1 2 4 15647 31294 62588 287669 575338 1150676 4501156843 9002313686 18004627372