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18185082002 = 2171981926987
BaseRepresentation
bin10000111011111010…
…100101010010010010
31201221100102212210122
4100323322211102102
5244220340111002
612204253230242
71212433434533
oct207372452222
951840385718
1018185082002
11779200629a
123636192382
13193a693669
14c4724868a
157167676a2
hex43bea5492

18185082002 has 16 divisors (see below), whose sum is σ = 28884716640. Its totient is φ = 8556936768.

The previous prime is 18185081953. The next prime is 18185082031. The reversal of 18185082002 is 20028058181.

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 7 ways as a sum of consecutive naturals, for example, 660353 + ... + 687339.

It is an arithmetic number, because the mean of its divisors is an integer number (1805294790).

Almost surely, 218185082002 is an apocalyptic number.

18185082002 is a deficient number, since it is larger than the sum of its proper divisors (10699634638).

18185082002 is a wasteful number, since it uses less digits than its factorization.

18185082002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46825.

The product of its (nonzero) digits is 10240, while the sum is 35.

The spelling of 18185082002 in words is "eighteen billion, one hundred eighty-five million, eighty-two thousand, two".

Divisors: 1 2 17 34 19819 26987 39638 53974 336923 458779 673846 917558 534855353 1069710706 9092541001 18185082002