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80839036928 = 2121323149443
BaseRepresentation
bin100101101001001100…
…0011101000000000000
321201122210220120021202
41023102120131000000
52311024243140203
6101045325040332
75561160322256
oct1132230350000
9251583816252
1080839036928
113131358aa31
12138009b60a8
137813c05080
143cac3865d6
152181ea7388
hex12d261d000

80839036928 has 208 divisors, whose sum is σ = 183294921600. Its totient is φ = 35368599552.

The previous prime is 80839036919. The next prime is 80839036961. The reversal of 80839036928 is 82963093808.

It is a tau number, because it is divible by the number of its divisors (208).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182480675 + ... + 182481117.

Almost surely, 280839036928 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 80839036928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91647460800).

80839036928 is an abundant number, since it is smaller than the sum of its proper divisors (102455884672).

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

80839036928 is a wasteful number, since it uses less digits than its factorization.

80839036928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 80839036928 in words is "eighty billion, eight hundred thirty-nine million, thirty-six thousand, nine hundred twenty-eight".