Base | Representation |
---|---|
bin | 10111110101101001… |
… | …00001111101111101 |
3 | 1020000220201020012020 |
4 | 23322310201331331 |
5 | 202202242243323 |
6 | 5513533430353 |
7 | 632101166133 |
oct | 137264417575 |
9 | 36026636166 |
10 | 12798009213 |
11 | 5478162820 |
12 | 259203b3b9 |
13 | 128c59b522 |
14 | 8959c9753 |
15 | 4ed852ae3 |
hex | 2fad21f7d |
12798009213 has 16 divisors (see below), whose sum is σ = 18644357952. Its totient is φ = 7744256000.
The previous prime is 12798009199. The next prime is 12798009229. The reversal of 12798009213 is 31290089721.
It is a cyclic number.
It is not a de Polignac number, because 12798009213 - 24 = 12798009197 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12798009233) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281358 + ... + 323663.
It is an arithmetic number, because the mean of its divisors is an integer number (1165272372).
Almost surely, 212798009213 is an apocalyptic number.
It is an amenable number.
12798009213 is a deficient number, since it is larger than the sum of its proper divisors (5846348739).
12798009213 is a wasteful number, since it uses less digits than its factorization.
12798009213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 605676.
The product of its (nonzero) digits is 54432, while the sum is 42.
The spelling of 12798009213 in words is "twelve billion, seven hundred ninety-eight million, nine thousand, two hundred thirteen".
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