Base | Representation |
---|---|
bin | 1000100110111100011011… |
… | …11011111100011001000000 |
3 | 2111000201102022021201011210 |
4 | 10103132031323330121000 |
5 | 4440123224324043114 |
6 | 104132243305210120 |
7 | 3662445351361140 |
oct | 423361573743100 |
9 | 74021368251153 |
10 | 18930302174784 |
11 | 603932907a500 |
12 | 215899ba90940 |
13 | a74173380500 |
14 | 4963353ba920 |
15 | 22c6497ec259 |
hex | 11378defc640 |
18930302174784 has 2016 divisors, whose sum is σ = 74522369875968. Its totient is φ = 4130788147200.
The previous prime is 18930302174731. The next prime is 18930302174813. The reversal of 18930302174784 is 48747120303981.
It is a super-3 number, since 3×189303021747843 (a number of 41 digits) contains 333 as substring.
It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 14483780659 + ... + 14483781965.
It is an arithmetic number, because the mean of its divisors is an integer number (36965461248).
Almost surely, 218930302174784 is an apocalyptic number.
18930302174784 is a gapful number since it is divisible by the number (14) 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 18930302174784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37261184937984).
18930302174784 is an abundant number, since it is smaller than the sum of its proper divisors (55592067701184).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18930302174784 is a wasteful number, since it uses less digits than its factorization.
18930302174784 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1425 (or 1391 counting only the distinct ones).
The product of its (nonzero) digits is 8128512, while the sum is 57.
The spelling of 18930302174784 in words is "eighteen trillion, nine hundred thirty billion, three hundred two million, one hundred seventy-four thousand, seven hundred eighty-four".
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