Base | Representation |
---|---|
bin | 11010000111100110… |
… | …010001011100010011 |
3 | 2200101111011110111100 |
4 | 122013212101130103 |
5 | 424413424321401 |
6 | 20514504315443 |
7 | 2011655351112 |
oct | 320746213423 |
9 | 80344143440 |
10 | 28044760851 |
11 | 10991599a08 |
12 | 5528172b83 |
13 | 284c290563 |
14 | 15008c1c79 |
15 | ae2158b86 |
hex | 687991713 |
28044760851 has 24 divisors (see below), whose sum is σ = 41966879760. Its totient is φ = 18025560000.
The previous prime is 28044760847. The next prime is 28044760853. The reversal of 28044760851 is 15806744082.
It is not a de Polignac number, because 28044760851 - 22 = 28044760847 is a prime.
It is a super-2 number, since 2×280447608512 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 28044760797 and 28044760806.
It is not an unprimeable number, because it can be changed into a prime (28044760853) 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 in 23 ways as a sum of consecutive naturals, for example, 102601 + ... + 258101.
It is an arithmetic number, because the mean of its divisors is an integer number (1748619990).
Almost surely, 228044760851 is an apocalyptic number.
28044760851 is a deficient number, since it is larger than the sum of its proper divisors (13922118909).
28044760851 is a wasteful number, since it uses less digits than its factorization.
28044760851 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 156227 (or 156224 counting only the distinct ones).
The product of its (nonzero) digits is 430080, while the sum is 45.
The spelling of 28044760851 in words is "twenty-eight billion, forty-four million, seven hundred sixty thousand, eight hundred fifty-one".
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