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12318585744 = 243256637203
BaseRepresentation
bin10110111100011111…
…01011001110010000
31011210111120222211110
423132033223032100
5200212024220434
65354210013320
7614160152103
oct133617531620
934714528743
1012318585744
11525157a883
122479577240
13121416c0ba
1484c06c73a
154c17014e9
hex2de3eb390

12318585744 has 20 divisors (see below), whose sum is σ = 31823013296. Its totient is φ = 4106195232.

The previous prime is 12318585733. The next prime is 12318585793. The reversal of 12318585744 is 44758581321.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 256637203 = 12318585744 / (1 + 2 + 3 + 1 + 8 + 5 + 8 + 5 + 7 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 12318585693 and 12318585702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128318554 + ... + 128318649.

Almost surely, 212318585744 is an apocalyptic number.

It is an amenable number.

12318585744 is an abundant number, since it is smaller than the sum of its proper divisors (19504427552).

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

12318585744 is a wasteful number, since it uses less digits than its factorization.

12318585744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256637214 (or 256637208 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The spelling of 12318585744 in words is "twelve billion, three hundred eighteen million, five hundred eighty-five thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 256637203 513274406 769911609 1026548812 1539823218 2053097624 3079646436 4106195248 6159292872 12318585744