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115065 = 3252557
BaseRepresentation
bin11100000101111001
312211211200
4130011321
512140230
62244413
7656316
oct340571
9184750
10115065
11794a5
1256709
13404b2
142dd0d
1524160
hex1c179

115065 has 12 divisors (see below), whose sum is σ = 199524. Its totient is φ = 61344.

The previous prime is 115061. The next prime is 115067. The reversal of 115065 is 560511.

It can be written as a sum of positive squares in 2 ways, for example, as 45369 + 69696 = 213^2 + 264^2 .

It is not a de Polignac number, because 115065 - 22 = 115061 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1234 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (16627).

2115065 is an apocalyptic number.

115065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115065 is a deficient number, since it is larger than the sum of its proper divisors (84459).

115065 is a wasteful number, since it uses less digits than its factorization.

115065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568 (or 2565 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 115065 is about 339.2123228894. The cubic root of 115065 is about 48.6386016540.

Adding to 115065 its reverse (560511), we get a palindrome (675576).

It can be divided in two parts, 11506 and 5, that added together give a palindrome (11511).

The spelling of 115065 in words is "one hundred fifteen thousand, sixty-five".

Divisors: 1 3 5 9 15 45 2557 7671 12785 23013 38355 115065