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8130844800 = 2734521319127
BaseRepresentation
bin1111001001010001…
…01101100010000000
3202222122121201020000
413210220231202000
5113122444013200
63422452120000
7405330016611
oct74450554200
922878551200
108130844800
1134a2717051
1216ab006000
139c7696290
14571c07c08
15328c44300
hex1e4a2d880

8130844800 has 960 divisors, whose sum is σ = 34281139200. Its totient is φ = 1881169920.

The previous prime is 8130844783. The next prime is 8130844807. The reversal of 8130844800 is 84480318.

It is a tau number, because it is divible by the number of its divisors (960).

It is a super-2 number, since 2×81308448002 (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (8130844807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 64022337 + ... + 64022463.

It is an arithmetic number, because the mean of its divisors is an integer number (35709520).

Almost surely, 28130844800 is an apocalyptic number.

8130844800 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 8130844800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17140569600).

8130844800 is an abundant number, since it is smaller than the sum of its proper divisors (26150294400).

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

8130844800 is a wasteful number, since it uses less digits than its factorization.

8130844800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 8130844800 is about 90171.1971751512. The cubic root of 8130844800 is about 2010.8448219632.

The spelling of 8130844800 in words is "eight billion, one hundred thirty million, eight hundred forty-four thousand, eight hundred".