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18375014236 = 22151239312713
BaseRepresentation
bin10001000111001111…
…000111011101011100
31202102120211102211211
4101013033013131130
5300113000423421
612235200154204
71220231021035
oct210717073534
952376742754
1018375014236
11787a242187
123689908964
13196ab342b7
14c64569a8c
157282839e1
hex4473c775c

18375014236 has 24 divisors (see below), whose sum is σ = 32385304224. Its totient is φ = 9122131200.

The previous prime is 18375014219. The next prime is 18375014263. The reversal of 18375014236 is 63241057381.

It is a super-2 number, since 2×183750142362 (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1439016 + ... + 1451728.

It is an arithmetic number, because the mean of its divisors is an integer number (1349387676).

Almost surely, 218375014236 is an apocalyptic number.

It is an amenable number.

18375014236 is a deficient number, since it is larger than the sum of its proper divisors (14010289988).

18375014236 is a wasteful number, since it uses less digits than its factorization.

18375014236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15261 (or 15259 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 18375014236 in words is "eighteen billion, three hundred seventy-five million, fourteen thousand, two hundred thirty-six".

Divisors: 1 2 4 151 302 604 2393 4786 9572 12713 25426 50852 361343 722686 1445372 1919663 3839326 7678652 30422209 60844418 121688836 4593753559 9187507118 18375014236