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12318613473 = 347130167153
BaseRepresentation
bin10110111100011111…
…10001111111100001
31011210111122101212110
423132033301333201
5200212031112343
65354210345533
7614160325665
oct133617617741
934714571773
1012318613473
1152515996a1
12247958b2a9
13121417b8ca
1484c0788a5
154c1709833
hex2de3f1fe1

12318613473 has 16 divisors (see below), whose sum is σ = 16787425536. Its totient is φ = 8031379200.

The previous prime is 12318613471. The next prime is 12318613477. The reversal of 12318613473 is 37431681321.

It is not a de Polignac number, because 12318613473 - 21 = 12318613471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12318613471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149865 + ... + 217017.

It is an arithmetic number, because the mean of its divisors is an integer number (1049214096).

Almost surely, 212318613473 is an apocalyptic number.

It is an amenable number.

12318613473 is a deficient number, since it is larger than the sum of its proper divisors (4468812063).

12318613473 is a wasteful number, since it uses less digits than its factorization.

12318613473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68504.

The product of its digits is 72576, while the sum is 39.

The spelling of 12318613473 in words is "twelve billion, three hundred eighteen million, six hundred thirteen thousand, four hundred seventy-three".

Divisors: 1 3 47 141 1301 3903 61147 67153 183441 201459 3156191 9468573 87366053 262098159 4106204491 12318613473