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12318415045 = 522811080089
BaseRepresentation
bin10110111100011110…
…00001100011000101
31011210111021022200021
423132033001203011
5200212003240140
65354202215141
7614155541326
oct133617014305
934714238607
1012318415045
115251473602
1224794b44b1
13121410c4b1
1484c02644d
154c16bab4a
hex2de3c18c5

12318415045 has 8 divisors (see below), whose sum is σ = 14788592280. Its totient is φ = 9850402560.

The previous prime is 12318415009. The next prime is 12318415051. The reversal of 12318415045 is 54051481321.

12318415045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2725779681 + 9592635364 = 52209^2 + 97942^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12318415045 - 27 = 12318414917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12318415045.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 528640 + ... + 551449.

It is an arithmetic number, because the mean of its divisors is an integer number (1848574035).

Almost surely, 212318415045 is an apocalyptic number.

It is an amenable number.

12318415045 is a deficient number, since it is larger than the sum of its proper divisors (2470177235).

12318415045 is a wasteful number, since it uses less digits than its factorization.

12318415045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082375.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 12318415045 its reverse (54051481321), we get a palindrome (66369896366).

The spelling of 12318415045 in words is "twelve billion, three hundred eighteen million, four hundred fifteen thousand, forty-five".

Divisors: 1 5 2281 11405 1080089 5400445 2463683009 12318415045