Base | Representation |
---|---|
bin | 11010001010100000… |
… | …001100011100100010 |
3 | 2200111212212121220021 |
4 | 122022200030130202 |
5 | 430013413433140 |
6 | 20523405104054 |
7 | 2013116542252 |
oct | 321240143442 |
9 | 80455777807 |
10 | 28093499170 |
11 | 10a07058810 |
12 | 554055802a |
13 | 28593c65b9 |
14 | 150716b962 |
15 | ae6584b4a |
hex | 68a80c722 |
28093499170 has 32 divisors (see below), whose sum is σ = 56448342720. Its totient is φ = 9978239040.
The previous prime is 28093499143. The next prime is 28093499171. The reversal of 28093499170 is 7199439082.
It is a happy number.
It is a super-2 number, since 2×280934991702 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (28093499171) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2964985 + ... + 2974444.
It is an arithmetic number, because the mean of its divisors is an integer number (1764010710).
Almost surely, 228093499170 is an apocalyptic number.
28093499170 is an abundant number, since it is smaller than the sum of its proper divisors (28354843550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28093499170 is a wasteful number, since it uses less digits than its factorization.
28093499170 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5939490.
The product of its (nonzero) digits is 979776, while the sum is 52.
The spelling of 28093499170 in words is "twenty-eight billion, ninety-three million, four hundred ninety-nine thousand, one hundred seventy".
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