Base | Representation |
---|---|
bin | 11010001010001011… |
… | …101111000101101111 |
3 | 2200111111210011002002 |
4 | 122022023233011233 |
5 | 430011030323142 |
6 | 20523054122515 |
7 | 2013023134316 |
oct | 321213570557 |
9 | 80444704062 |
10 | 28088136047 |
11 | 10a04025384 |
12 | 553a7b043b |
13 | 285826945a |
14 | 150657327d |
15 | ae5d75a32 |
hex | 68a2ef16f |
28088136047 has 2 divisors, whose sum is σ = 28088136048. Its totient is φ = 28088136046.
The previous prime is 28088136017. The next prime is 28088136053. The reversal of 28088136047 is 74063188082.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 28088136047 - 224 = 28071358831 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 28088135992 and 28088136010.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28088136017) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14044068023 + 14044068024.
It is an arithmetic number, because the mean of its divisors is an integer number (14044068024).
Almost surely, 228088136047 is an apocalyptic number.
28088136047 is a deficient number, since it is larger than the sum of its proper divisors (1).
28088136047 is an equidigital number, since it uses as much as digits as its factorization.
28088136047 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 516096, while the sum is 47.
The spelling of 28088136047 in words is "twenty-eight billion, eighty-eight million, one hundred thirty-six thousand, forty-seven".
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