Base | Representation |
---|---|
bin | 10111100011000011… |
… | …11010100000100010 |
3 | 1012122001101221200001 |
4 | 23301201322200202 |
5 | 201342341242200 |
6 | 5450244450214 |
7 | 625166236450 |
oct | 136141724042 |
9 | 35561357601 |
10 | 12642134050 |
11 | 53a8178477 |
12 | 25499a996a |
13 | 12661c33c0 |
14 | 87d0119d0 |
15 | 4ded1276a |
hex | 2f187a822 |
12642134050 has 96 divisors (see below), whose sum is σ = 29266876800. Its totient is φ = 3955944960.
The previous prime is 12642134017. The next prime is 12642134051. The reversal of 12642134050 is 5043124621.
It is not an unprimeable number, because it can be changed into a prime (12642134051) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 389341 + ... + 420559.
It is an arithmetic number, because the mean of its divisors is an integer number (304863300).
Almost surely, 212642134050 is an apocalyptic number.
12642134050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12642134050 is an abundant number, since it is smaller than the sum of its proper divisors (16624742750).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12642134050 is a wasteful number, since it uses less digits than its factorization.
12642134050 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31340 (or 31335 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 28.
Adding to 12642134050 its reverse (5043124621), we get a palindrome (17685258671).
The spelling of 12642134050 in words is "twelve billion, six hundred forty-two million, one hundred thirty-four thousand, fifty".
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