Base | Representation |
---|---|
bin | 11010111111101100… |
… | …101101101000100010 |
3 | 2202211002020000020000 |
4 | 122333230231220202 |
5 | 433330402121112 |
6 | 21152130000430 |
7 | 2044204464510 |
oct | 327754555042 |
9 | 82732200200 |
10 | 28985973282 |
11 | 1132490a822 |
12 | 574b416116 |
13 | 296c2865a6 |
14 | 158d8c94b0 |
15 | b49ac67dc |
hex | 6bfb2da22 |
28985973282 has 40 divisors (see below), whose sum is σ = 74228632896. Its totient is φ = 8281706328.
The previous prime is 28985973227. The next prime is 28985973287. The reversal of 28985973282 is 28237958982.
28985973282 is a `hidden beast` number, since 2 + 8 + 9 + 8 + 597 + 32 + 8 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is not an unprimeable number, because it can be changed into a prime (28985973287) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12779278 + ... + 12781545.
Almost surely, 228985973282 is an apocalyptic number.
28985973282 is an abundant number, since it is smaller than the sum of its proper divisors (45242659614).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28985973282 is a wasteful number, since it uses less digits than its factorization.
28985973282 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25560844 (or 25560835 counting only the distinct ones).
The product of its digits is 34836480, while the sum is 63.
The spelling of 28985973282 in words is "twenty-eight billion, nine hundred eighty-five million, nine hundred seventy-three thousand, two hundred eighty-two".
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