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18786683116 = 2231151505509
BaseRepresentation
bin10001011111110001…
…100000100011101100
31210111021110101101101
4101133301200203230
5301433342324431
612344103452444
71233360112615
oct213761404354
953437411341
1018786683116
117a706580a3
123783757124
131a051ccc56
14ca30cac0c
1574e49e961
hex45fc608ec

18786683116 has 12 divisors (see below), whose sum is σ = 33937234240. Its totient is φ = 9090330480.

The previous prime is 18786683099. The next prime is 18786683117. The reversal of 18786683116 is 61138668781.

It is not an unprimeable number, because it can be changed into a prime (18786683117) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 75752631 + ... + 75752878.

Almost surely, 218786683116 is an apocalyptic number.

It is an amenable number.

18786683116 is a deficient number, since it is larger than the sum of its proper divisors (15150551124).

18786683116 is a wasteful number, since it uses less digits than its factorization.

18786683116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151505544 (or 151505542 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The spelling of 18786683116 in words is "eighteen billion, seven hundred eighty-six million, six hundred eighty-three thousand, one hundred sixteen".

Divisors: 1 2 4 31 62 124 151505509 303011018 606022036 4696670779 9393341558 18786683116