Base | Representation |
---|---|
bin | 11010101011100100… |
… | …001110101011101101 |
3 | 2201221112122121022000 |
4 | 122223210032223231 |
5 | 432132420030122 |
6 | 21054422242513 |
7 | 2032633503444 |
oct | 325344165355 |
9 | 81845577260 |
10 | 28648205037 |
11 | 1117118a511 |
12 | 5676286439 |
13 | 29172c3a1a |
14 | 155aac3d5b |
15 | b2a1070ac |
hex | 6ab90eaed |
28648205037 has 16 divisors (see below), whose sum is σ = 42465984000. Its totient is φ = 19087913952.
The previous prime is 28648205011. The next prime is 28648205087. The reversal of 28648205037 is 73050284682.
28648205037 is a `hidden beast` number, since 2 + 8 + 64 + 82 + 0 + 503 + 7 = 666.
It is not a de Polignac number, because 28648205037 - 27 = 28648204909 is a prime.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 28648204983 and 28648205001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28648205087) 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, 254112 + ... + 349097.
It is an arithmetic number, because the mean of its divisors is an integer number (2654124000).
Almost surely, 228648205037 is an apocalyptic number.
28648205037 is a gapful number since it is divisible by the number (27) formed by its first and last digit.
It is an amenable number.
28648205037 is a deficient number, since it is larger than the sum of its proper divisors (13817778963).
28648205037 is a wasteful number, since it uses less digits than its factorization.
28648205037 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 604977 (or 604971 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 45.
The spelling of 28648205037 in words is "twenty-eight billion, six hundred forty-eight million, two hundred five thousand, thirty-seven".
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