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82395081 = 329155009
BaseRepresentation
bin1001110100100…
…11111111001001
312202001002210200
410322103333021
5132043120311
612102002413
72020226616
oct472237711
9182032720
1082395081
114256770a
1223716409
13140bb5b2
14ad2b50d
157378556
hex4e93fc9

82395081 has 6 divisors (see below), whose sum is σ = 119015130. Its totient is φ = 54930048.

The previous prime is 82395037. The next prime is 82395083. The reversal of 82395081 is 18059328.

It can be written as a sum of positive squares in only one way, i.e., 56385081 + 26010000 = 7509^2 + 5100^2 .

It is not a de Polignac number, because 82395081 - 214 = 82378697 is a prime.

It is a super-2 number, since 2×823950812 = 13577898745993122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82395083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4577496 + ... + 4577513.

It is an arithmetic number, because the mean of its divisors is an integer number (19835855).

Almost surely, 282395081 is an apocalyptic number.

It is an amenable number.

82395081 is a deficient number, since it is larger than the sum of its proper divisors (36620049).

82395081 is a wasteful number, since it uses less digits than its factorization.

82395081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155015 (or 9155012 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 82395081 is about 9077.1736239867. The cubic root of 82395081 is about 435.1447635509.

The spelling of 82395081 in words is "eighty-two million, three hundred ninety-five thousand, eighty-one".

Divisors: 1 3 9 9155009 27465027 82395081