Base | Representation |
---|---|
bin | 11010101101100111… |
… | …010010111011011101 |
3 | 2202000221022011222000 |
4 | 122231213102323131 |
5 | 432220214011133 |
6 | 21102050512513 |
7 | 2033531523336 |
oct | 325547227335 |
9 | 82027264860 |
10 | 28682563293 |
11 | 1118961736a |
12 | 5685895739 |
13 | 2921463657 |
14 | 15614a928d |
15 | b2d142413 |
hex | 6ad9d2edd |
28682563293 has 16 divisors (see below), whose sum is σ = 42504656640. Its totient is φ = 19116322272.
The previous prime is 28682563291. The next prime is 28682563297. The reversal of 28682563293 is 39236528682.
28682563293 is a `hidden beast` number, since 2 + 8 + 68 + 256 + 329 + 3 = 666.
It is not a de Polignac number, because 28682563293 - 21 = 28682563291 is a prime.
It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28682563291) 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, 50821 + ... + 244842.
It is an arithmetic number, because the mean of its divisors is an integer number (2656541040).
Almost surely, 228682563293 is an apocalyptic number.
It is an amenable number.
28682563293 is a deficient number, since it is larger than the sum of its proper divisors (13822093347).
28682563293 is a wasteful number, since it uses less digits than its factorization.
28682563293 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 299265 (or 299259 counting only the distinct ones).
The product of its digits is 7464960, while the sum is 54.
The spelling of 28682563293 in words is "twenty-eight billion, six hundred eighty-two million, five hundred sixty-three thousand, two hundred ninety-three".
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