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83328890680 = 2357297603181
BaseRepresentation
bin100110110011011001…
…0011111011100111000
321222002100000020112101
41031212302133130320
52331124144000210
6102140351153144
76006652612150
oct1154662373470
9258070006471
1083328890680
1132380a93a02
12141968157b4
137b1c9c1209
144066d15760
15227a87ba3a
hex1366c9f738

83328890680 has 32 divisors (see below), whose sum is σ = 214274291040. Its totient is φ = 28569905280.

The previous prime is 83328890651. The next prime is 83328890683. The reversal of 83328890680 is 8609882338.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83328890683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148801311 + ... + 148801870.

It is an arithmetic number, because the mean of its divisors is an integer number (6696071595).

Almost surely, 283328890680 is an apocalyptic number.

It is an amenable number.

83328890680 is an abundant number, since it is smaller than the sum of its proper divisors (130945400360).

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

83328890680 is a wasteful number, since it uses less digits than its factorization.

83328890680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297603199 (or 297603195 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 83328890680 in words is "eighty-three billion, three hundred twenty-eight million, eight hundred ninety thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 297603181 595206362 1190412724 1488015905 2083222267 2380825448 2976031810 4166444534 5952063620 8332889068 10416111335 11904127240 16665778136 20832222670 41664445340 83328890680