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12318613472 = 251134996061
BaseRepresentation
bin10110111100011111…
…10001111111100000
31011210111122101212102
423132033301333200
5200212031112342
65354210345532
7614160325664
oct133617617740
934714571772
1012318613472
1152515996a0
12247958b2a8
13121417b8c9
1484c0788a4
154c1709832
hex2de3f1fe0

12318613472 has 24 divisors (see below), whose sum is σ = 26457022872. Its totient is φ = 5599369600.

The previous prime is 12318613471. The next prime is 12318613477. The reversal of 12318613472 is 27431681321.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 17497679 + ... + 17498382.

It is an arithmetic number, because the mean of its divisors is an integer number (1102375953).

Almost surely, 212318613472 is an apocalyptic number.

It is an amenable number.

12318613472 is an abundant number, since it is smaller than the sum of its proper divisors (14138409400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12318613472 is a wasteful number, since it uses less digits than its factorization.

12318613472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34996082 (or 34996074 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The spelling of 12318613472 in words is "twelve billion, three hundred eighteen million, six hundred thirteen thousand, four hundred seventy-two".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 34996061 69992122 139984244 279968488 384956671 559936976 769913342 1119873952 1539826684 3079653368 6159306736 12318613472