Base | Representation |
---|---|
bin | 10111000100101100… |
… | …00110100100001000 |
3 | 1011222022001002002000 |
4 | 23202112012210020 |
5 | 200332132120324 |
6 | 5405104311000 |
7 | 615653662635 |
oct | 134226064410 |
9 | 34868032060 |
10 | 12387379464 |
11 | 5287397599 |
12 | 2498612460 |
13 | 12254a7845 |
14 | 85725918c |
15 | 4c778e9c9 |
hex | 2e2586908 |
12387379464 has 64 divisors (see below), whose sum is σ = 35595936000. Its totient is φ = 3986740800.
The previous prime is 12387379457. The next prime is 12387379469. The reversal of 12387379464 is 46497378321.
12387379464 is a `hidden beast` number, since 12 + 38 + 73 + 79 + 464 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a self number, because there is not a number n which added to its sum of digits gives 12387379464.
It is not an unprimeable number, because it can be changed into a prime (12387379469) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982512 + ... + 995039.
It is an arithmetic number, because the mean of its divisors is an integer number (556186500).
Almost surely, 212387379464 is an apocalyptic number.
It is an amenable number.
12387379464 is an abundant number, since it is smaller than the sum of its proper divisors (23208556536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12387379464 is a wasteful number, since it uses less digits than its factorization.
12387379464 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1977595 (or 1977585 counting only the distinct ones).
The product of its digits is 6096384, while the sum is 54.
The spelling of 12387379464 in words is "twelve billion, three hundred eighty-seven million, three hundred seventy-nine thousand, four hundred sixty-four".
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