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80243343360 = 21435529139
BaseRepresentation
bin100101010111011100…
…0000100000000000000
321200010022000012100000
41022232320010000000
52303314243441420
6100510245200000
75540335110315
oct1125670040000
9250108005300
1080243343360
11310383035a4
1213675400000
13774a68667b
143c53200d0c
152149a3a690
hex12aee04000

80243343360 has 720 divisors, whose sum is σ = 300565137600. Its totient is φ = 20511719424.

The previous prime is 80243343287. The next prime is 80243343403. The reversal of 80243343360 is 6334334208.

80243343360 is a `hidden beast` number, since 80 + 243 + 3 + 4 + 336 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 577290171 + ... + 577290309.

It is an arithmetic number, because the mean of its divisors is an integer number (417451580).

Almost surely, 280243343360 is an apocalyptic number.

80243343360 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 80243343360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150282568800).

80243343360 is an abundant number, since it is smaller than the sum of its proper divisors (220321794240).

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

80243343360 is an equidigital number, since it uses as much as digits as its factorization.

80243343360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 80243343360 its reverse (6334334208), we get a palindrome (86577677568).

The spelling of 80243343360 in words is "eighty billion, two hundred forty-three million, three hundred forty-three thousand, three hundred sixty".