Base | Representation |
---|---|
bin | 1000011001100000100110… |
… | …10110100100000011000000 |
3 | 2102101120220100100112000000 |
4 | 10030300103112210003000 |
5 | 4410042331104222340 |
6 | 103140221335000000 |
7 | 3614214131163204 |
oct | 414602326440300 |
9 | 72346810315000 |
10 | 18468684054720 |
11 | 5980585742539 |
12 | 20a3430b09000 |
13 | a3c787ca66c3 |
14 | 47bc638b4b04 |
15 | 22062d5c2d30 |
hex | 10cc135a40c0 |
18468684054720 has 784 divisors, whose sum is σ = 69560968320000. Its totient is φ = 4655496923136.
The previous prime is 18468684054707. The next prime is 18468684054721. The reversal of 18468684054720 is 2745048686481.
It is a happy number.
18468684054720 is a `hidden beast` number, since 1 + 8 + 4 + 6 + 8 + 6 + 84 + 0 + 547 + 2 + 0 = 666.
It is not an unprimeable number, because it can be changed into a prime (18468684054721) by changing a digit.
It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2123076931 + ... + 2123085629.
Almost surely, 218468684054720 is an apocalyptic number.
18468684054720 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 18468684054720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34780484160000).
18468684054720 is an abundant number, since it is smaller than the sum of its proper divisors (51092284265280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18468684054720 is an equidigital number, since it uses as much as digits as its factorization.
18468684054720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9232 (or 9207 counting only the distinct ones).
The product of its (nonzero) digits is 82575360, while the sum is 63.
The spelling of 18468684054720 in words is "eighteen trillion, four hundred sixty-eight billion, six hundred eighty-four million, fifty-four thousand, seven hundred twenty".
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