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115513425 = 3352171131
BaseRepresentation
bin1101110001010…
…01100001010001
322001100200122000
412320221201101
5214032412200
615243504213
72601563556
oct670514121
9261320560
10115513425
115a227a45
1232828069
131ac15a51
14114aca2d
15a21b300
hex6e29851

115513425 has 24 divisors (see below), whose sum is σ = 212203680. Its totient is φ = 61606800.

The previous prime is 115513423. The next prime is 115513457. The reversal of 115513425 is 524315511.

It is not a de Polignac number, because 115513425 - 21 = 115513423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115513423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84891 + ... + 86240.

It is an arithmetic number, because the mean of its divisors is an integer number (8841820).

Almost surely, 2115513425 is an apocalyptic number.

115513425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115513425 is a deficient number, since it is larger than the sum of its proper divisors (96690255).

115513425 is a wasteful number, since it uses less digits than its factorization.

115513425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171150 (or 171139 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 115513425 is about 10747.7171994801. The cubic root of 115513425 is about 487.0170364817.

Adding to 115513425 its reverse (524315511), we get a palindrome (639828936).

The spelling of 115513425 in words is "one hundred fifteen million, five hundred thirteen thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 135 225 675 171131 513393 855655 1540179 2566965 4278275 4620537 7700895 12834825 23102685 38504475 115513425