Search a number
-
+
87325065 = 3251940557
BaseRepresentation
bin1010011010001…
…11100110001001
320002022120110200
411031013212021
5134323400230
612355402413
72110152012
oct515074611
9202276420
1087325065
1145324683
12252b3409
1315126549
14b852009
1579ee160
hex5347989

87325065 has 12 divisors (see below), whose sum is σ = 151363524. Its totient is φ = 46573344.

The previous prime is 87325057. The next prime is 87325067. The reversal of 87325065 is 56052378.

It can be written as a sum of positive squares in 2 ways, for example, as 64256256 + 23068809 = 8016^2 + 4803^2 .

It is not a de Polignac number, because 87325065 - 23 = 87325057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87325067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 970234 + ... + 970323.

It is an arithmetic number, because the mean of its divisors is an integer number (12613627).

Almost surely, 287325065 is an apocalyptic number.

It is an amenable number.

87325065 is a deficient number, since it is larger than the sum of its proper divisors (64038459).

87325065 is a wasteful number, since it uses less digits than its factorization.

87325065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940568 (or 1940565 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 87325065 is about 9344.7881195884. The cubic root of 87325065 is about 443.6559454170.

The spelling of 87325065 in words is "eighty-seven million, three hundred twenty-five thousand, sixty-five".

Divisors: 1 3 5 9 15 45 1940557 5821671 9702785 17465013 29108355 87325065