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80837690080 = 2557174918647
BaseRepresentation
bin100101101001001001…
…1010100001011100000
321201122201101010202111
41023102103110023200
52311023422040310
6101045240125104
75561143012510
oct1132223241340
9251581333674
1080837690080
1131312850034
1213800466794
137813853014
143cac115840
152181cdd28a
hex12d24d42e0

80837690080 has 192 divisors, whose sum is σ = 231598144512. Its totient is φ = 26029301760.

The previous prime is 80837690047. The next prime is 80837690099. The reversal of 80837690080 is 8009673808.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9344317 + ... + 9352963.

It is an arithmetic number, because the mean of its divisors is an integer number (1206240336).

Almost surely, 280837690080 is an apocalyptic number.

80837690080 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 80837690080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115799072256).

80837690080 is an abundant number, since it is smaller than the sum of its proper divisors (150760454432).

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

80837690080 is a wasteful number, since it uses less digits than its factorization.

80837690080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9177 (or 9169 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 80837690080 in words is "eighty billion, eight hundred thirty-seven million, six hundred ninety thousand, eighty".