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18282116500 = 225343850331
BaseRepresentation
bin10001000001101100…
…101111010110010100
31202012010000202002221
4101001230233112110
5244420210212000
612222041112124
71215022266124
oct210154572624
952163022087
1018282116500
11783186179a
123662788644
13195480941b
14c560a6c84
1572003361a
hex441b2f594

18282116500 has 48 divisors (see below), whose sum is σ = 40856751936. Its totient is φ = 7142772000.

The previous prime is 18282116477. The next prime is 18282116507. The reversal of 18282116500 is 561128281.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18282116507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403666 + ... + 446665.

It is an arithmetic number, because the mean of its divisors is an integer number (851182332).

Almost surely, 218282116500 is an apocalyptic number.

18282116500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18282116500 is an abundant number, since it is smaller than the sum of its proper divisors (22574635436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18282116500 is a wasteful number, since it uses less digits than its factorization.

18282116500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850393 (or 850381 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The spelling of 18282116500 in words is "eighteen billion, two hundred eighty-two million, one hundred sixteen thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 43 50 86 100 125 172 215 250 430 500 860 1075 2150 4300 5375 10750 21500 850331 1700662 3401324 4251655 8503310 17006620 21258275 36564233 42516550 73128466 85033100 106291375 146256932 182821165 212582750 365642330 425165500 731284660 914105825 1828211650 3656423300 4570529125 9141058250 18282116500