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12130717 = 22675351
BaseRepresentation
bin101110010001…
…100110011101
3211211022012211
4232101212131
511101140332
61112000421
7205052344
oct56214635
924738184
1012130717
116935a95
124090111
132689651
14187ab5b
1510e9447
hexb9199d

12130717 has 4 divisors (see below), whose sum is σ = 12138336. Its totient is φ = 12123100.

The previous prime is 12130681. The next prime is 12130739. The reversal of 12130717 is 71703121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12130717 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 (12100717) 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, 409 + ... + 4942.

It is an arithmetic number, because the mean of its divisors is an integer number (3034584).

Almost surely, 212130717 is an apocalyptic number.

It is an amenable number.

12130717 is a deficient number, since it is larger than the sum of its proper divisors (7619).

12130717 is an equidigital number, since it uses as much as digits as its factorization.

12130717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7618.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 12130717 is about 3482.9178859112. The cubic root of 12130717 is about 229.7711460229.

Adding to 12130717 its reverse (71703121), we get a palindrome (83833838).

The spelling of 12130717 in words is "twelve million, one hundred thirty thousand, seven hundred seventeen".

Divisors: 1 2267 5351 12130717