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18200508086 = 2103522716903
BaseRepresentation
bin10000111100110101…
…011011011010110110
31201222102110121102002
4100330311123122312
5244233312224321
612210004015302
71213011523535
oct207465333266
951872417362
1018200508086
11779a792122
12363b391532
131940934c17
14c4930231c
15717cb320b
hex43cd5b6b6

18200508086 has 16 divisors (see below), whose sum is σ = 27572722944. Its totient is φ = 9009644904.

The previous prime is 18200508043. The next prime is 18200508103. The reversal of 18200508086 is 68080500281.

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, 1068311 + ... + 1085213.

It is an arithmetic number, because the mean of its divisors is an integer number (1723295184).

Almost surely, 218200508086 is an apocalyptic number.

18200508086 is a deficient number, since it is larger than the sum of its proper divisors (9372214858).

18200508086 is a wasteful number, since it uses less digits than its factorization.

18200508086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22235.

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 18200508086 in words is "eighteen billion, two hundred million, five hundred eight thousand, eighty-six".

Divisors: 1 2 103 206 5227 10454 16903 33806 538381 1076762 1741009 3482018 88351981 176703962 9100254043 18200508086