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82009028160 = 263251719233833
BaseRepresentation
bin100110001100000011…
…1100111011001000000
321211200100110021112100
41030120013213121000
52320423302400120
6101401402030400
75632155144363
oct1143007473100
9254610407470
1082009028160
1131863a5a734
1213a887a8400
13796c420587
143d7d9040da
1521eea66490
hex13181e7640

82009028160 has 672 divisors, whose sum is σ = 328143778560. Its totient is φ = 18646695936.

The previous prime is 82009028111. The next prime is 82009028161. The reversal of 82009028160 is 6182090028.

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 (82009028161) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21393604 + ... + 21397436.

Almost surely, 282009028160 is an apocalyptic number.

82009028160 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 82009028160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164071889280).

82009028160 is an abundant number, since it is smaller than the sum of its proper divisors (246134750400).

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

82009028160 is a wasteful number, since it uses less digits than its factorization.

82009028160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 82009028160 in words is "eighty-two billion, nine million, twenty-eight thousand, one hundred sixty".