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111043423 = 1071099521
BaseRepresentation
bin1101001111001…
…10001101011111
321201221120221101
412213212031133
5211411342143
615004013531
72515565521
oct647461537
9251846841
10111043423
1157754627
12312312a7
131a00c28a
1410a67a11
159b36b4d
hex69e635f

111043423 has 8 divisors (see below), whose sum is σ = 113121360. Its totient is φ = 108984960.

The previous prime is 111043421. The next prime is 111043433. The reversal of 111043423 is 324340111.

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 111043423 - 21 = 111043421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111043423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111043421) 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, 6903 + ... + 16423.

It is an arithmetic number, because the mean of its divisors is an integer number (14140170).

Almost surely, 2111043423 is an apocalyptic number.

111043423 is a deficient number, since it is larger than the sum of its proper divisors (2077937).

111043423 is a wasteful number, since it uses less digits than its factorization.

111043423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 111043423 is about 10537.7143157328. The cubic root of 111043423 is about 480.6522137895.

Adding to 111043423 its reverse (324340111), we get a palindrome (435383534).

The spelling of 111043423 in words is "one hundred eleven million, forty-three thousand, four hundred twenty-three".

Divisors: 1 107 109 9521 11663 1018747 1037789 111043423