Base | Representation |
---|---|
bin | 111111001010100100011… |
… | …1110111001110110111000 |
3 | 1010201221002102221001221220 |
4 | 1332111020332321312320 |
5 | 2114213402424322210 |
6 | 30244054135032040 |
7 | 1554131012655306 |
oct | 176251076716670 |
9 | 33657072831856 |
10 | 8681353354680 |
11 | 2847817712256 |
12 | b8260780b620 |
13 | 4ac856b82756 |
14 | 22027330b276 |
15 | 100c4ded0c70 |
hex | 7e548fb9db8 |
8681353354680 has 128 divisors (see below), whose sum is σ = 26341170969600. Its totient is φ = 2288626560000.
The previous prime is 8681353354679. The next prime is 8681353354727. The reversal of 8681353354680 is 864533531868.
It is a Harshad number since it is a multiple of its sum of digits (60).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65626605 + ... + 65758755.
It is an arithmetic number, because the mean of its divisors is an integer number (205790398200).
Almost surely, 28681353354680 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 8681353354680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13170585484800).
8681353354680 is an abundant number, since it is smaller than the sum of its proper divisors (17659817614920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8681353354680 is a wasteful number, since it uses less digits than its factorization.
8681353354680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 138405 (or 138401 counting only the distinct ones).
The product of its (nonzero) digits is 49766400, while the sum is 60.
The spelling of 8681353354680 in words is "eight trillion, six hundred eighty-one billion, three hundred fifty-three million, three hundred fifty-four thousand, six hundred eighty".
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