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115130225 = 5271394733
BaseRepresentation
bin1101101110010…
…11111101110001
322000122012222102
412313023331301
5213433131400
615231350145
72565406430
oct667137561
9260565872
10115130225
1159a96051
1232682355
131ab104c2
141140d117
15a1929d5
hex6dcbf71

115130225 has 24 divisors (see below), whose sum is σ = 164364480. Its totient is φ = 78361920.

The previous prime is 115130189. The next prime is 115130233. The reversal of 115130225 is 522031511.

It is a happy number.

It is not a de Polignac number, because 115130225 - 28 = 115129969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 115130197 and 115130206.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21959 + ... + 26691.

It is an arithmetic number, because the mean of its divisors is an integer number (6848520).

Almost surely, 2115130225 is an apocalyptic number.

It is an amenable number.

115130225 is a deficient number, since it is larger than the sum of its proper divisors (49234255).

115130225 is a wasteful number, since it uses less digits than its factorization.

115130225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889 (or 4884 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115130225 is about 10729.8753487634. The cubic root of 115130225 is about 486.4779023879.

Adding to 115130225 its reverse (522031511), we get a palindrome (637161736).

The spelling of 115130225 in words is "one hundred fifteen million, one hundred thirty thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 139 175 695 973 3475 4733 4865 23665 24325 33131 118325 165655 657887 828275 3289435 4605209 16447175 23026045 115130225