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18375700199 = 641254311273
BaseRepresentation
bin10001000111010001…
…101110111011100111
31202102122010021210212
4101013101232323213
5300113134401244
612235223010035
71220236605653
oct210721567347
952378107725
1018375700199
11787a67059a
123689b9991b
13196b0145ac
14c646a7a63
1572836bd9e
hex44746eee7

18375700199 has 8 divisors (see below), whose sum is σ = 18413237952. Its totient is φ = 18338191360.

The previous prime is 18375700171. The next prime is 18375700219. The reversal of 18375700199 is 99100757381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18375700199 - 228 = 18107264743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18375700139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624427 + ... + 1635699.

It is an arithmetic number, because the mean of its divisors is an integer number (2301654744).

Almost surely, 218375700199 is an apocalyptic number.

18375700199 is a deficient number, since it is larger than the sum of its proper divisors (37537753).

18375700199 is a wasteful number, since it uses less digits than its factorization.

18375700199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14457.

The product of its (nonzero) digits is 476280, while the sum is 50.

Adding to 18375700199 its sum of digits (50), we get a square (18375700249 = 1355572).

The spelling of 18375700199 in words is "eighteen billion, three hundred seventy-five million, seven hundred thousand, one hundred ninety-nine".

Divisors: 1 641 2543 11273 1630063 7225993 28667239 18375700199