Base | Representation |
---|---|
bin | 10110111000111101… |
… | …00111000000100111 |
3 | 1011201102211011001010 |
4 | 23130132213000213 |
5 | 200131432234330 |
6 | 5351230433303 |
7 | 613350214350 |
oct | 133436470047 |
9 | 34642734033 |
10 | 12288946215 |
11 | 52368761a7 |
12 | 246b662833 |
13 | 120ac92210 |
14 | 848154d27 |
15 | 4bdce93b0 |
hex | 2dc7a7027 |
12288946215 has 128 divisors (see below), whose sum is σ = 24566169600. Its totient is φ = 5107898880.
The previous prime is 12288946211. The next prime is 12288946231. The reversal of 12288946215 is 51264988221.
It is not a de Polignac number, because 12288946215 - 22 = 12288946211 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12288946211) by changing a digit.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 45346530 + ... + 45346800.
It is an arithmetic number, because the mean of its divisors is an integer number (191923200).
Almost surely, 212288946215 is an apocalyptic number.
12288946215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12288946215 is a deficient number, since it is larger than the sum of its proper divisors (12277223385).
12288946215 is a wasteful number, since it uses less digits than its factorization.
12288946215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 677.
The product of its digits is 552960, while the sum is 48.
The spelling of 12288946215 in words is "twelve billion, two hundred eighty-eight million, nine hundred forty-six thousand, two hundred fifteen".
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