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18248730500 = 225371113192101
BaseRepresentation
bin10000111111101101…
…011000011110000100
31202002210012120010102
4100333231120132010
5244333133334000
612214445343232
71214135435630
oct207755303604
952083176112
1018248730500
117814a29360
123653567b18
13194a91a1b0
14c51895dc0
1571c13b3d5
hex43fb58784

18248730500 has 576 divisors, whose sum is σ = 57035736576. Its totient is φ = 4924800000.

The previous prime is 18248730499. The next prime is 18248730517. The reversal of 18248730500 is 503784281.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 180680450 + ... + 180680550.

It is an arithmetic number, because the mean of its divisors is an integer number (99020376).

Almost surely, 218248730500 is an apocalyptic number.

18248730500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18248730500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28517868288).

18248730500 is an abundant number, since it is smaller than the sum of its proper divisors (38787006076).

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

18248730500 is a wasteful number, since it uses less digits than its factorization.

18248730500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 18248730500 in words is "eighteen billion, two hundred forty-eight million, seven hundred thirty thousand, five hundred".