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115113 = 338371
BaseRepresentation
bin11100000110101001
312211220110
4130012221
512140423
62244533
7656415
oct340651
9184813
10115113
1179539
1256749
134051b
142dd45
1524193
hex1c1a9

115113 has 4 divisors (see below), whose sum is σ = 153488. Its totient is φ = 76740.

The previous prime is 115099. The next prime is 115117. The reversal of 115113 is 311511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311511 = 3103837.

It is not a de Polignac number, because 115113 - 29 = 114601 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19183 + ... + 19188.

It is an arithmetic number, because the mean of its divisors is an integer number (38372).

2115113 is an apocalyptic number.

It is an amenable number.

115113 is a deficient number, since it is larger than the sum of its proper divisors (38375).

115113 is an equidigital number, since it uses as much as digits as its factorization.

115113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38374.

The product of its digits is 15, while the sum is 12.

The square root of 115113 is about 339.2830676589. The cubic root of 115113 is about 48.6453640008.

Adding to 115113 its reverse (311511), we get a palindrome (426624).

The spelling of 115113 in words is "one hundred fifteen thousand, one hundred thirteen".

Divisors: 1 3 38371 115113