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18116487214 = 273195740493
BaseRepresentation
bin10000110111110100…
…111010100000101110
31201202120100220102221
4100313310322200232
5244100310042324
612153403105554
71210641412660
oct206764724056
951676326387
1018116487214
117757314a91
1236172122ba
1319293c7627
14c3c0b0530
157107180e4
hex437d3a82e

18116487214 has 16 divisors (see below), whose sum is σ = 31058574048. Its totient is φ = 7763774112.

The previous prime is 18116487209. The next prime is 18116487229. The reversal of 18116487214 is 41278461181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427152 + ... + 467644.

It is an arithmetic number, because the mean of its divisors is an integer number (1941160878).

Almost surely, 218116487214 is an apocalyptic number.

18116487214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18116487214 is a deficient number, since it is larger than the sum of its proper divisors (12942086834).

18116487214 is a wasteful number, since it uses less digits than its factorization.

18116487214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72459.

The product of its digits is 86016, while the sum is 43.

The spelling of 18116487214 in words is "eighteen billion, one hundred sixteen million, four hundred eighty-seven thousand, two hundred fourteen".

Divisors: 1 2 7 14 31957 40493 63914 80986 223699 283451 447398 566902 1294034801 2588069602 9058243607 18116487214