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113142343 = 313649753
BaseRepresentation
bin1101011111001…
…10101001000111
321212220020010011
412233212221013
5212431023333
615121011051
72542460026
oct657465107
9255806104
10113142343
1158958576
1231a83a87
131a595742
14110528bd
159ded9cd
hex6be6a47

113142343 has 4 divisors (see below), whose sum is σ = 116792128. Its totient is φ = 109492560.

The previous prime is 113142319. The next prime is 113142347. The reversal of 113142343 is 343241311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343241311 = 749034473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-113142343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113142347) 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, 1824846 + ... + 1824907.

It is an arithmetic number, because the mean of its divisors is an integer number (29198032).

Almost surely, 2113142343 is an apocalyptic number.

113142343 is a deficient number, since it is larger than the sum of its proper divisors (3649785).

113142343 is an equidigital number, since it uses as much as digits as its factorization.

113142343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649784.

The product of its digits is 864, while the sum is 22.

The square root of 113142343 is about 10636.8389571338. The cubic root of 113142343 is about 483.6617274674.

Adding to 113142343 its reverse (343241311), we get a palindrome (456383654).

The spelling of 113142343 in words is "one hundred thirteen million, one hundred forty-two thousand, three hundred forty-three".

Divisors: 1 31 3649753 113142343