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115243038 = 2326402391
BaseRepresentation
bin1101101111001…
…11100000011110
322000211221201200
412313213200132
5214000234123
615234020330
72566356351
oct667474036
9260757650
10115243038
115a062889
12327176a6
131ab4c961
141143c298
15a1b6143
hex6de781e

115243038 has 12 divisors (see below), whose sum is σ = 249693288. Its totient is φ = 38414340.

The previous prime is 115243033. The next prime is 115243039. The reversal of 115243038 is 830342511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115243031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3201178 + ... + 3201213.

It is an arithmetic number, because the mean of its divisors is an integer number (20807774).

Almost surely, 2115243038 is an apocalyptic number.

115243038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

115243038 is an abundant number, since it is smaller than the sum of its proper divisors (134450250).

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

115243038 is a wasteful number, since it uses less digits than its factorization.

115243038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6402399 (or 6402396 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 115243038 is about 10735.1310192284. The cubic root of 115243038 is about 486.6367460390.

Adding to 115243038 its reverse (830342511), we get a palindrome (945585549).

The spelling of 115243038 in words is "one hundred fifteen million, two hundred forty-three thousand, thirty-eight".

Divisors: 1 2 3 6 9 18 6402391 12804782 19207173 38414346 57621519 115243038