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18472864196 = 2279148739313
BaseRepresentation
bin10001001101000100…
…011000100111000100
31202200101221201202102
4101031010120213010
5300313023123241
612253013331232
71222526516633
oct211504304704
952611851672
1018472864196
11791a4a5316
1236b6636b18
1319851a4297
14c7355b51a
15731b6139b
hex44d1189c4

18472864196 has 24 divisors (see below), whose sum is σ = 32759569920. Its totient is φ = 9113150592.

The previous prime is 18472864181. The next prime is 18472864213. The reversal of 18472864196 is 69146827481.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450236 + ... + 489548.

It is an arithmetic number, because the mean of its divisors is an integer number (1364982080).

Almost surely, 218472864196 is an apocalyptic number.

It is an amenable number.

18472864196 is a deficient number, since it is larger than the sum of its proper divisors (14286705724).

18472864196 is a wasteful number, since it uses less digits than its factorization.

18472864196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40883 (or 40881 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The spelling of 18472864196 in words is "eighteen billion, four hundred seventy-two million, eight hundred sixty-four thousand, one hundred ninety-six".

Divisors: 1 2 4 79 158 316 1487 2974 5948 39313 78626 117473 157252 234946 469892 3105727 6211454 12422908 58458431 116916862 233833724 4618216049 9236432098 18472864196