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113112233 = 138700941
BaseRepresentation
bin1101011110111…
…11010010101001
321212211200210222
412233133102221
5212424042413
615120215425
72542303163
oct657372251
9255750728
10113112233
1158937993
1231a6a575
131a584b20
1411045933
159de4b08
hex6bdf4a9

113112233 has 4 divisors (see below), whose sum is σ = 121813188. Its totient is φ = 104411280.

The previous prime is 113112199. The next prime is 113112283. The reversal of 113112233 is 332211311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332211311 = 2931133827.

It can be written as a sum of positive squares in 2 ways, for example, as 37908649 + 75203584 = 6157^2 + 8672^2 .

It is a cyclic number.

It is not a de Polignac number, because 113112233 - 212 = 113108137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113112283) 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, 4350458 + ... + 4350483.

It is an arithmetic number, because the mean of its divisors is an integer number (30453297).

Almost surely, 2113112233 is an apocalyptic number.

113112233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113112233 is a deficient number, since it is larger than the sum of its proper divisors (8700955).

113112233 is an equidigital number, since it uses as much as digits as its factorization.

113112233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8700954.

The product of its digits is 108, while the sum is 17.

The square root of 113112233 is about 10635.4234988551. The cubic root of 113112233 is about 483.6188188437.

Adding to 113112233 its reverse (332211311), we get a palindrome (445323544).

The spelling of 113112233 in words is "one hundred thirteen million, one hundred twelve thousand, two hundred thirty-three".

Divisors: 1 13 8700941 113112233