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80328697344 = 2932719131071
BaseRepresentation
bin100101011001111110…
…1101010011000000000
321200100020121121222200
41022303331222120000
52304003121303334
6100522534433200
75542422442620
oct1126375523000
9250306547880
1080328697344
1131081501285
1213699b02800
13776226c99c
143c6069c880
15215229a799
hex12b3f6a600

80328697344 has 240 divisors, whose sum is σ = 278900244480. Its totient is φ = 21742940160.

The previous prime is 80328697343. The next prime is 80328697367. The reversal of 80328697344 is 44379682308.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80328697343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 547329 + ... + 678399.

It is an arithmetic number, because the mean of its divisors is an integer number (1162084352).

Almost surely, 280328697344 is an apocalyptic number.

80328697344 is a gapful number since it is divisible by the number (84) 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 80328697344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139450122240).

80328697344 is an abundant number, since it is smaller than the sum of its proper divisors (198571547136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80328697344 is a wasteful number, since it uses less digits than its factorization.

80328697344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131121 (or 131102 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 80328697344 in words is "eighty billion, three hundred twenty-eight million, six hundred ninety-seven thousand, three hundred forty-four".