Base | Representation |
---|---|
bin | 10111110101000101… |
… | …00011111110110001 |
3 | 1020000120211220210220 |
4 | 23322202203332301 |
5 | 202200041030430 |
6 | 5513244443253 |
7 | 632013150264 |
oct | 137242437661 |
9 | 36016756726 |
10 | 12793298865 |
11 | 5475535876 |
12 | 2590549529 |
13 | 128b60c539 |
14 | 895120cdb |
15 | 4ed222110 |
hex | 2fa8a3fb1 |
12793298865 has 16 divisors (see below), whose sum is σ = 20485338048. Its totient is φ = 6817739456.
The previous prime is 12793298803. The next prime is 12793298867. The reversal of 12793298865 is 56889239721.
It is a cyclic number.
It is not a de Polignac number, because 12793298865 - 26 = 12793298801 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 12793298799 and 12793298808.
It is not an unprimeable number, because it can be changed into a prime (12793298867) 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, 314787 + ... + 353096.
It is an arithmetic number, because the mean of its divisors is an integer number (1280333628).
Almost surely, 212793298865 is an apocalyptic number.
12793298865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12793298865 is a deficient number, since it is larger than the sum of its proper divisors (7692039183).
12793298865 is a wasteful number, since it uses less digits than its factorization.
12793298865 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 669168.
The product of its digits is 13063680, while the sum is 60.
The spelling of 12793298865 in words is "twelve billion, seven hundred ninety-three million, two hundred ninety-eight thousand, eight hundred sixty-five".
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