Base | Representation |
---|---|
bin | 11000011101000000… |
… | …11010101110101011 |
3 | 1020212221011202220202 |
4 | 30032200122232223 |
5 | 203341314443003 |
6 | 10010412342415 |
7 | 643221355505 |
oct | 141640325653 |
9 | 36787152822 |
10 | 13128281003 |
11 | 5627632912 |
12 | 2664774a0b |
13 | 1312b37c16 |
14 | 8c77dcd75 |
15 | 51c841088 |
hex | 30e81abab |
13128281003 has 2 divisors, whose sum is σ = 13128281004. Its totient is φ = 13128281002.
The previous prime is 13128280973. The next prime is 13128281009. The reversal of 13128281003 is 30018282131.
13128281003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13128281003 - 212 = 13128276907 is a prime.
It is not a weakly prime, because it can be changed into another prime (13128281009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6564140501 + 6564140502.
It is an arithmetic number, because the mean of its divisors is an integer number (6564140502).
Almost surely, 213128281003 is an apocalyptic number.
13128281003 is a deficient number, since it is larger than the sum of its proper divisors (1).
13128281003 is an equidigital number, since it uses as much as digits as its factorization.
13128281003 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2304, while the sum is 29.
The spelling of 13128281003 in words is "thirteen billion, one hundred twenty-eight million, two hundred eighty-one thousand, three".
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