Base | Representation |
---|---|
bin | 11010000110101110… |
… | …001011001010001101 |
3 | 2200100110111022221011 |
4 | 122012232023022031 |
5 | 424401143230203 |
6 | 20513221205221 |
7 | 2011416352060 |
oct | 320656131215 |
9 | 80313438834 |
10 | 28030055053 |
11 | 10984265260 |
12 | 5523260811 |
13 | 2849211ac0 |
14 | 14dc9748d7 |
15 | ae0c0176d |
hex | 686b8b28d |
28030055053 has 32 divisors (see below), whose sum is σ = 37699022592. Its totient is φ = 20127052800.
The previous prime is 28030055041. The next prime is 28030055059. The reversal of 28030055053 is 35055003082.
It is a cyclic number.
It is not a de Polignac number, because 28030055053 - 25 = 28030055021 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28030055059) 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 31 ways as a sum of consecutive naturals, for example, 569983 + ... + 617203.
It is an arithmetic number, because the mean of its divisors is an integer number (1178094456).
Almost surely, 228030055053 is an apocalyptic number.
It is an amenable number.
28030055053 is a deficient number, since it is larger than the sum of its proper divisors (9668967539).
28030055053 is a wasteful number, since it uses less digits than its factorization.
28030055053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 47845.
The product of its (nonzero) digits is 18000, while the sum is 31.
The spelling of 28030055053 in words is "twenty-eight billion, thirty million, fifty-five thousand, fifty-three".
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