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115242303 = 31117205423
BaseRepresentation
bin1101101111001…
…11010100111111
322000211220201110
412313213110333
5214000223203
615234013103
72566354251
oct667472477
9260756643
10115242303
115a062280
1232717193
131ab4c517
141143bcd1
15a1b5d03
hex6de753f

115242303 has 16 divisors (see below), whose sum is σ = 177486336. Its totient is φ = 65735040.

The previous prime is 115242287. The next prime is 115242307. The reversal of 115242303 is 303242511.

It is not a de Polignac number, because 115242303 - 24 = 115242287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115242303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115242307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102151 + ... + 103272.

It is an arithmetic number, because the mean of its divisors is an integer number (11092896).

Almost surely, 2115242303 is an apocalyptic number.

115242303 is a deficient number, since it is larger than the sum of its proper divisors (62244033).

115242303 is a wasteful number, since it uses less digits than its factorization.

115242303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205454.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 115242303 is about 10735.0967857770. The cubic root of 115242303 is about 486.6357114753.

Adding to 115242303 its reverse (303242511), we get a palindrome (418484814).

The spelling of 115242303 in words is "one hundred fifteen million, two hundred forty-two thousand, three hundred three".

Divisors: 1 3 11 17 33 51 187 561 205423 616269 2259653 3492191 6778959 10476573 38414101 115242303