Base | Representation |
---|---|
bin | 10111111011101010… |
… | …10000011100100110 |
3 | 1020011102210000101100 |
4 | 23331311100130212 |
5 | 202303210444423 |
6 | 5522540340530 |
7 | 633253466514 |
oct | 137565203446 |
9 | 36142700340 |
10 | 12848531238 |
11 | 54a372a764 |
12 | 25a6b44746 |
13 | 1299baa40a |
14 | 89c5bb4b4 |
15 | 502ed2343 |
hex | 2fdd50726 |
12848531238 has 12 divisors (see below), whose sum is σ = 27838484388. Its totient is φ = 4282843740.
The previous prime is 12848531233. The next prime is 12848531249. The reversal of 12848531238 is 83213584821.
12848531238 is a `hidden beast` number, since 1 + 2 + 84 + 8 + 531 + 2 + 38 = 666.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 12848531193 and 12848531202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12848531231) by changing a digit.
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 5 ways as a sum of consecutive naturals, for example, 356903628 + ... + 356903663.
It is an arithmetic number, because the mean of its divisors is an integer number (2319873699).
Almost surely, 212848531238 is an apocalyptic number.
12848531238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
12848531238 is an abundant number, since it is smaller than the sum of its proper divisors (14989953150).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12848531238 is a wasteful number, since it uses less digits than its factorization.
12848531238 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 713807299 (or 713807296 counting only the distinct ones).
The product of its digits is 368640, while the sum is 45.
The spelling of 12848531238 in words is "twelve billion, eight hundred forty-eight million, five hundred thirty-one thousand, two hundred thirty-eight".
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