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80868310242720 = 2535711131931377723
BaseRepresentation
bin10010011000110010011110…
…111001111101010110100000
3101121022221020120202122021020
4102120302132321331112200
541044421244410231340
6443554215554325440
723014354054320060
oct2230623671752640
9347287216678236
1080868310242720
112384906a999290
1290a09a1589880
133617b06154b50
1415d80933553a0
15953884d0c9d0
hex498c9ee7d5a0

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".