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83989324608 = 2637103739821
BaseRepresentation
bin100111000111000100…
…1110110001101000000
322000210100201202120020
41032032021312031000
52334002231341413
6102330102413440
76032222323410
oct1161611661500
9260710652506
1083989324608
113268a869772
121433ba31280
137bc6789417
1440ca910640
1522b8835c23
hex138e276340

83989324608 has 224 divisors, whose sum is σ = 257093191680. Its totient is φ = 23702906880.

The previous prime is 83989324579. The next prime is 83989324609. The reversal of 83989324608 is 80642398938.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83989324609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102300838 + ... + 102301658.

Almost surely, 283989324608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83989324608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128546595840).

83989324608 is an abundant number, since it is smaller than the sum of its proper divisors (173103867072).

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

83989324608 is a wasteful number, since it uses less digits than its factorization.

83989324608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 83989324608 in words is "eighty-three billion, nine hundred eighty-nine million, three hundred twenty-four thousand, six hundred eight".