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111010423 = 611819843
BaseRepresentation
bin1101001110111…
…10001001110111
321201212220200011
412213132021313
5211404313143
615003201051
72515400356
oct647361167
9251786604
10111010423
1157731857
1231216187
1319cca254
1410a5999d
159b2be9d
hex69de277

111010423 has 4 divisors (see below), whose sum is σ = 112830328. Its totient is φ = 109190520.

The previous prime is 111010421. The next prime is 111010439. The reversal of 111010423 is 324010111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324010111 = 653496187.

It is a cyclic number.

It is not a de Polignac number, because 111010423 - 21 = 111010421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010421) 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 3 ways as a sum of consecutive naturals, for example, 909861 + ... + 909982.

It is an arithmetic number, because the mean of its divisors is an integer number (28207582).

Almost surely, 2111010423 is an apocalyptic number.

111010423 is a deficient number, since it is larger than the sum of its proper divisors (1819905).

111010423 is an equidigital number, since it uses as much as digits as its factorization.

111010423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819904.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 111010423 is about 10536.1483949307. The cubic root of 111010423 is about 480.6045954971.

Adding to 111010423 its reverse (324010111), we get a palindrome (435020534).

The spelling of 111010423 in words is "one hundred eleven million, ten thousand, four hundred twenty-three".

Divisors: 1 61 1819843 111010423