Base | Representation |
---|---|
bin | 11010111001101000… |
… | …101010100100110011 |
3 | 2202112222210212120200 |
4 | 122321220222210303 |
5 | 433123331431013 |
6 | 21134053410243 |
7 | 2041531031100 |
oct | 327150524463 |
9 | 82488725520 |
10 | 28884248883 |
11 | 11282450776 |
12 | 5721339983 |
13 | 295418ac39 |
14 | 15801a9aa7 |
15 | b40bd0e73 |
hex | 6b9a2a933 |
28884248883 has 18 divisors (see below), whose sum is σ = 48533398524. Its totient is φ = 16505284824.
The previous prime is 28884248863. The next prime is 28884248891. The reversal of 28884248883 is 38884248882.
It is not a de Polignac number, because 28884248883 - 217 = 28884117811 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a self number, because there is not a number n which added to its sum of digits gives 28884248883.
It is not an unprimeable number, because it can be changed into a prime (28884248843) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32748141 + ... + 32749022.
It is an arithmetic number, because the mean of its divisors is an integer number (2696299918).
Almost surely, 228884248883 is an apocalyptic number.
28884248883 is a deficient number, since it is larger than the sum of its proper divisors (19649149641).
28884248883 is a wasteful number, since it uses less digits than its factorization.
28884248883 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65497183 (or 65497173 counting only the distinct ones).
The product of its digits is 50331648, while the sum is 63.
Subtracting 28884248883 from its reverse (38884248882), we obtain a palindrome (9999999999).
The spelling of 28884248883 in words is "twenty-eight billion, eight hundred eighty-four million, two hundred forty-eight thousand, eight hundred eighty-three".
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