Base | Representation |
---|---|
bin | 11010010110011000… |
… | …101011010000011101 |
3 | 2201000202222221102121 |
4 | 122112120223100131 |
5 | 430420432323223 |
6 | 20555250022541 |
7 | 2021060204116 |
oct | 322630532035 |
9 | 81022887377 |
10 | 28292854813 |
11 | 10aa9640643 |
12 | 5597277a51 |
13 | 288b7b6512 |
14 | 152582320d |
15 | b08d1315d |
hex | 69662b41d |
28292854813 has 2 divisors, whose sum is σ = 28292854814. Its totient is φ = 28292854812.
The previous prime is 28292854771. The next prime is 28292854819. The reversal of 28292854813 is 31845829282.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 28053905049 + 238949764 = 167493^2 + 15458^2 .
It is a cyclic number.
It is not a de Polignac number, because 28292854813 - 217 = 28292723741 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28292854819) 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, 14146427406 + 14146427407.
It is an arithmetic number, because the mean of its divisors is an integer number (14146427407).
Almost surely, 228292854813 is an apocalyptic number.
It is an amenable number.
28292854813 is a deficient number, since it is larger than the sum of its proper divisors (1).
28292854813 is an equidigital number, since it uses as much as digits as its factorization.
28292854813 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2211840, while the sum is 52.
The spelling of 28292854813 in words is "twenty-eight billion, two hundred ninety-two million, eight hundred fifty-four thousand, eight hundred thirteen".
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