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12162313173 = 33124218631
BaseRepresentation
bin10110101001110111…
…00010101111010101
31011101121112112011110
423110323202233111
5144402023010143
65330504325233
7610251645663
oct132473425725
934347475143
1012162313173
11518134399a
122435173819
1311ba98511a
148353cdc33
154b2b33533
hex2d4ee2bd5

12162313173 has 12 divisors (see below), whose sum is σ = 16756406304. Its totient is φ = 7846651800.

The previous prime is 12162313169. The next prime is 12162313259. The reversal of 12162313173 is 37131326121.

It is not a de Polignac number, because 12162313173 - 22 = 12162313169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12162313173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162313123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2106433 + ... + 2112198.

It is an arithmetic number, because the mean of its divisors is an integer number (1396367192).

Almost surely, 212162313173 is an apocalyptic number.

It is an amenable number.

12162313173 is a deficient number, since it is larger than the sum of its proper divisors (4594093131).

12162313173 is an equidigital number, since it uses as much as digits as its factorization.

12162313173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218696 (or 4218665 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

Adding to 12162313173 its reverse (37131326121), we get a palindrome (49293639294).

The spelling of 12162313173 in words is "twelve billion, one hundred sixty-two million, three hundred thirteen thousand, one hundred seventy-three".

Divisors: 1 3 31 93 961 2883 4218631 12655893 130777561 392332683 4054104391 12162313173