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115425243 = 354331097
BaseRepresentation
bin1101110000100…
…11111111011011
322001012012200000
412320103333123
5214022101433
615241544043
72601045513
oct670237733
9261165600
10115425243
115a17776a
12327a5023
131abb487b
1411488843
15a200113
hex6e13fdb

115425243 has 24 divisors (see below), whose sum is σ = 173457648. Its totient is φ = 76702464.

The previous prime is 115425239. The next prime is 115425251. The reversal of 115425243 is 342524511.

It is not a de Polignac number, because 115425243 - 22 = 115425239 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 (115425203) 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, 104671 + ... + 105767.

It is an arithmetic number, because the mean of its divisors is an integer number (7227402).

Almost surely, 2115425243 is an apocalyptic number.

115425243 is a deficient number, since it is larger than the sum of its proper divisors (58032405).

115425243 is an equidigital number, since it uses as much as digits as its factorization.

115425243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1533 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 115425243 is about 10743.6140567316. The cubic root of 115425243 is about 486.8930766643.

Adding to 115425243 its reverse (342524511), we get a palindrome (457949754).

The spelling of 115425243 in words is "one hundred fifteen million, four hundred twenty-five thousand, two hundred forty-three".

Divisors: 1 3 9 27 81 243 433 1097 1299 3291 3897 9873 11691 29619 35073 88857 105219 266571 475001 1425003 4275009 12825027 38475081 115425243