Base | Representation |
---|---|
bin | 10010011000110010011110… |
… | …111001111101010110100000 |
3 | 101121022221020120202122021020 |
4 | 102120302132321331112200 |
5 | 41044421244410231340 |
6 | 443554215554325440 |
7 | 23014354054320060 |
oct | 2230623671752640 |
9 | 347287216678236 |
10 | 80868310242720 |
11 | 2384906a999290 |
12 | 90a09a1589880 |
13 | 3617b06154b50 |
14 | 15d80933553a0 |
15 | 953884d0c9d0 |
hex | 498c9ee7d5a0 |
80868310242720 has 3072 divisors, whose sum is σ = 381730530263040. Its totient is φ = 13834661068800.
The previous prime is 80868310242703. The next prime is 80868310242721. The reversal of 80868310242720 is 2724201386808.
It is not an unprimeable number, because it can be changed into a prime (80868310242721) by changing a digit.
It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 10471096779 + ... + 10471104501.
It is an arithmetic number, because the mean of its divisors is an integer number (124261240320).
Almost surely, 280868310242720 is an apocalyptic number.
80868310242720 is a gapful number since it is divisible by the number (80) 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 80868310242720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190865265131520).
80868310242720 is an abundant number, since it is smaller than the sum of its proper divisors (300862220020320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80868310242720 is a wasteful number, since it uses less digits than its factorization.
80868310242720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7859 (or 7851 counting only the distinct ones).
The product of its (nonzero) digits is 2064384, while the sum is 51.
The spelling of 80868310242720 in words is "eighty trillion, eight hundred sixty-eight billion, three hundred ten million, two hundred forty-two thousand, seven hundred twenty".
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