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12130663 = 113107351
BaseRepresentation
bin101110010001…
…100101100111
3211211022010211
4232101211213
511101140123
61112000251
7205052236
oct56214547
924738124
1012130663
116935a46
124090087
13268960c
14187ab1d
1510e940d
hexb91967

12130663 has 4 divisors (see below), whose sum is σ = 12238128. Its totient is φ = 12023200.

The previous prime is 12130649. The next prime is 12130667. The reversal of 12130663 is 36603121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36603121 = 178720483.

It is not a de Polignac number, because 12130663 - 25 = 12130631 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53563 + ... + 53788.

It is an arithmetic number, because the mean of its divisors is an integer number (3059532).

Almost surely, 212130663 is an apocalyptic number.

12130663 is a deficient number, since it is larger than the sum of its proper divisors (107465).

12130663 is a wasteful number, since it uses less digits than its factorization.

12130663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107464.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 12130663 is about 3482.9101337818. The cubic root of 12130663 is about 229.7708050796.

Adding to 12130663 its reverse (36603121), we get a palindrome (48733784).

The spelling of 12130663 in words is "twelve million, one hundred thirty thousand, six hundred sixty-three".

Divisors: 1 113 107351 12130663