Base | Representation |
---|---|
bin | 11010000110101110… |
… | …010010010101001001 |
3 | 2200100110112211020000 |
4 | 122012232102111021 |
5 | 424401200200200 |
6 | 20513221553213 |
7 | 2011416533520 |
oct | 320656222511 |
9 | 80313484200 |
10 | 28030084425 |
11 | 10984285332 |
12 | 5523275809 |
13 | 2849222295 |
14 | 14dc9814b7 |
15 | ae0c0a300 |
hex | 686b92549 |
28030084425 has 120 divisors (see below), whose sum is σ = 60602716416. Its totient is φ = 12540821760.
The previous prime is 28030084409. The next prime is 28030084573. The reversal of 28030084425 is 52448003082.
It is not a de Polignac number, because 28030084425 - 24 = 28030084409 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 28030084425.
It is an unprimeable number.
It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 645189 + ... + 687261.
Almost surely, 228030084425 is an apocalyptic number.
28030084425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
28030084425 is an abundant number, since it is smaller than the sum of its proper divisors (32572631991).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28030084425 is a wasteful number, since it uses less digits than its factorization.
28030084425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42149 (or 42135 counting only the distinct ones).
The product of its (nonzero) digits is 61440, while the sum is 36.
The spelling of 28030084425 in words is "twenty-eight billion, thirty million, eighty-four thousand, four hundred twenty-five".
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