Search a number
-
+
9115425 = 32521129127
BaseRepresentation
bin100010110001…
…011100100001
3122011010000100
4202301130201
54313143200
6523213013
7140323404
oct42613441
918133010
109115425
115166610
123077169
131b72057
1412d3d3b
15c00d00
hex8b1721

9115425 has 72 divisors (see below), whose sum is σ = 18570240. Its totient is φ = 4233600.

The previous prime is 9115399. The next prime is 9115427. The reversal of 9115425 is 5245119.

It is not a de Polignac number, because 9115425 - 27 = 9115297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9115427) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 71712 + ... + 71838.

It is an arithmetic number, because the mean of its divisors is an integer number (257920).

Almost surely, 29115425 is an apocalyptic number.

It is an amenable number.

9115425 is an abundant number, since it is smaller than the sum of its proper divisors (9454815).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9115425 is a wasteful number, since it uses less digits than its factorization.

9115425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 175 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 9115425 is about 3019.1762121479. The cubic root of 9115425 is about 208.8938435125.

It can be divided in two parts, 911 and 5425, that added together give a palindrome (6336).

The spelling of 9115425 in words is "nine million, one hundred fifteen thousand, four hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 29 33 45 55 75 87 99 127 145 165 225 261 275 319 381 435 495 635 725 825 957 1143 1305 1397 1595 1905 2175 2475 2871 3175 3683 4191 4785 5715 6525 6985 7975 9525 11049 12573 14355 18415 20955 23925 28575 33147 34925 40513 55245 62865 71775 92075 104775 121539 165735 202565 276225 314325 364617 607695 828675 1012825 1823085 3038475 9115425