Base | Representation |
---|---|
bin | 11000000100011111… |
… | …00011000000001000 |
3 | 1020100121000122010200 |
4 | 30002033203000020 |
5 | 202431132004343 |
6 | 5534142412200 |
7 | 635142464652 |
oct | 140217430010 |
9 | 36317018120 |
10 | 12922531848 |
11 | 5531483496 |
12 | 2607891060 |
13 | 12ac319b65 |
14 | 8a83616d2 |
15 | 50974d4d3 |
hex | 3023e3008 |
12922531848 has 36 divisors (see below), whose sum is σ = 35001136365. Its totient is φ = 4307189088.
The previous prime is 12922531837. The next prime is 12922531849. The reversal of 12922531848 is 84813522921.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
12922531848 is a `hidden beast` number, since 1 + 292 + 2 + 5 + 318 + 48 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 8780064804 + 4142467044 = 93702^2 + 64362^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=80382.
It is not an unprimeable number, because it can be changed into a prime (12922531849) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 957886 + ... + 971282.
Almost surely, 212922531848 is an apocalyptic number.
12922531848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12922531848 is an abundant number, since it is smaller than the sum of its proper divisors (22078604517).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12922531848 is an frugal number, since it uses more digits than its factorization.
12922531848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26806 (or 13402 counting only the distinct ones).
The product of its digits is 276480, while the sum is 45.
The spelling of 12922531848 in words is "twelve billion, nine hundred twenty-two million, five hundred thirty-one thousand, eight hundred forty-eight".
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