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86853081 = 376167801
BaseRepresentation
bin1010010110101…
…00010111011001
320001102121000210
411023110113121
5134213244311
612341321333
72103144660
oct513242731
9201377023
1086853081
1145032007
1225106249
1314cbc773
14b76bdd7
1579593a6
hex52d45d9

86853081 has 16 divisors (see below), whose sum is σ = 134519168. Its totient is φ = 48816000.

The previous prime is 86853071. The next prime is 86853101. The reversal of 86853081 is 18035868.

It is a happy number.

It is not a de Polignac number, because 86853081 - 210 = 86852057 is a prime.

It is a super-2 number, since 2×868530812 = 15086915358385122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is the 9320-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (86853001) by changing a digit.

It is a nontrivial repunit in base 9319.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32620 + ... + 35181.

It is an arithmetic number, because the mean of its divisors is an integer number (8407448).

Almost surely, 286853081 is an apocalyptic number.

It is an amenable number.

86853081 is a deficient number, since it is larger than the sum of its proper divisors (47666087).

86853081 is a wasteful number, since it uses less digits than its factorization.

86853081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67872.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 86853081 is about 9319.5000402382. The cubic root of 86853081 is about 442.8551943971.

The spelling of 86853081 in words is "eighty-six million, eight hundred fifty-three thousand, eighty-one".

Divisors: 1 3 7 21 61 183 427 1281 67801 203403 474607 1423821 4135861 12407583 28951027 86853081