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113142243 = 3293128717
BaseRepresentation
bin1101011111001…
…10100111100011
321212220012222110
412233212213203
5212431022433
615121010403
72542456524
oct657464743
9255805873
10113142243
1158958495
1231a83a03
131a595696
141105284b
159ded963
hex6be69e3

113142243 has 8 divisors (see below), whose sum is σ = 151372368. Its totient is φ = 75170144.

The previous prime is 113142233. The next prime is 113142257. The reversal of 113142243 is 342241311.

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 113142243 - 213 = 113134051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113142233) 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, 63480 + ... + 65237.

It is an arithmetic number, because the mean of its divisors is an integer number (18921546).

Almost surely, 2113142243 is an apocalyptic number.

113142243 is a deficient number, since it is larger than the sum of its proper divisors (38230125).

113142243 is a wasteful number, since it uses less digits than its factorization.

113142243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129013.

The product of its digits is 576, while the sum is 21.

The square root of 113142243 is about 10636.8342564882. The cubic root of 113142243 is about 483.6615849738.

Adding to 113142243 its reverse (342241311), we get a palindrome (455383554).

The spelling of 113142243 in words is "one hundred thirteen million, one hundred forty-two thousand, two hundred forty-three".

Divisors: 1 3 293 879 128717 386151 37714081 113142243