Base | Representation |
---|---|
bin | 1100101001111… |
… | …1101010110101 |
3 | 10200212212220211 |
4 | 3022133222311 |
5 | 102042122210 |
6 | 5133425421 |
7 | 1213124236 |
oct | 312375265 |
9 | 120785824 |
10 | 53082805 |
11 | 27a66996 |
12 | 1593b271 |
13 | acc7659 |
14 | 709b08d |
15 | 49d838a |
hex | 329fab5 |
53082805 has 4 divisors (see below), whose sum is σ = 63699372. Its totient is φ = 42466240.
The previous prime is 53082803. The next prime is 53082829. The reversal of 53082805 is 50828035.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50828035 = 5 ⋅10165607.
It can be written as a sum of positive squares in 2 ways, for example, as 38229489 + 14853316 = 6183^2 + 3854^2 .
It is not a de Polignac number, because 53082805 - 21 = 53082803 is a prime.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (53082803) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5308276 + ... + 5308285.
It is an arithmetic number, because the mean of its divisors is an integer number (15924843).
Almost surely, 253082805 is an apocalyptic number.
It is an amenable number.
53082805 is a deficient number, since it is larger than the sum of its proper divisors (10616567).
53082805 is a wasteful number, since it uses less digits than its factorization.
53082805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10616566.
The product of its (nonzero) digits is 9600, while the sum is 31.
The square root of 53082805 is about 7285.7947404521. The cubic root of 53082805 is about 375.8240957978.
The spelling of 53082805 in words is "fifty-three million, eighty-two thousand, eight hundred five".
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