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115243055 = 5223103357
BaseRepresentation
bin1101101111001…
…11100000101111
322000211221202022
412313213200233
5214000234210
615234020355
72566356404
oct667474057
9260757668
10115243055
115a0628a4
12327176bb
131ab4c975
141143c2ab
15a1b6155
hex6de782f

115243055 has 8 divisors (see below), whose sum is σ = 138913152. Its totient is φ = 91780128.

The previous prime is 115243043. The next prime is 115243057. The reversal of 115243055 is 550342511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115243055 - 24 = 115243039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115243057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50564 + ... + 52793.

It is an arithmetic number, because the mean of its divisors is an integer number (17364144).

Almost surely, 2115243055 is an apocalyptic number.

115243055 is a deficient number, since it is larger than the sum of its proper divisors (23670097).

115243055 is a wasteful number, since it uses less digits than its factorization.

115243055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103585.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 115243055 is about 10735.1318110212. The cubic root of 115243055 is about 486.6367699676.

Adding to 115243055 its reverse (550342511), we get a palindrome (665585566).

The spelling of 115243055 in words is "one hundred fifteen million, two hundred forty-three thousand, fifty-five".

Divisors: 1 5 223 1115 103357 516785 23048611 115243055