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83091086 = 2134217591
BaseRepresentation
bin1001111001111…
…01111010001110
312210100110112122
410330331322032
5132232403321
612124532542
72026156031
oct474757216
9183313478
1083091086
11429a2621
12239b1152
13142a3330
14b06d018
1574648ab
hex4f3de8e

83091086 has 16 divisors (see below), whose sum is σ = 134560608. Its totient is φ = 38253600.

The previous prime is 83091083. The next prime is 83091103. The reversal of 83091086 is 68019038.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83091083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7151 + ... + 14741.

It is an arithmetic number, because the mean of its divisors is an integer number (8410038).

Almost surely, 283091086 is an apocalyptic number.

83091086 is a deficient number, since it is larger than the sum of its proper divisors (51469522).

83091086 is a wasteful number, since it uses less digits than its factorization.

83091086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8027.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 83091086 is about 9115.4312020880. The cubic root of 83091086 is about 436.3665765085.

The spelling of 83091086 in words is "eighty-three million, ninety-one thousand, eighty-six".

Divisors: 1 2 13 26 421 842 5473 7591 10946 15182 98683 197366 3195811 6391622 41545543 83091086