Base | Representation |
---|---|
bin | 1100101000110… |
… | …1100111110101 |
3 | 10200202010112001 |
4 | 3022031213311 |
5 | 102032241020 |
6 | 5132055301 |
7 | 1212365566 |
oct | 312154765 |
9 | 120663461 |
10 | 53008885 |
11 | 27a163a6 |
12 | 15904531 |
13 | ac9cb07 |
14 | 707c16d |
15 | 49c150a |
hex | 328d9f5 |
53008885 has 4 divisors (see below), whose sum is σ = 63610668. Its totient is φ = 42407104.
The previous prime is 53008883. The next prime is 53008913. The reversal of 53008885 is 58880035.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58880035 = 5 ⋅11776007.
It can be written as a sum of positive squares in 2 ways, for example, as 20484676 + 32524209 = 4526^2 + 5703^2 .
It is a cyclic number.
It is not a de Polignac number, because 53008885 - 21 = 53008883 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (53008883) 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, 5300884 + ... + 5300893.
It is an arithmetic number, because the mean of its divisors is an integer number (15902667).
Almost surely, 253008885 is an apocalyptic number.
It is an amenable number.
53008885 is a deficient number, since it is larger than the sum of its proper divisors (10601783).
53008885 is a wasteful number, since it uses less digits than its factorization.
53008885 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10601782.
The product of its (nonzero) digits is 38400, while the sum is 37.
The square root of 53008885 is about 7280.7200880133. The cubic root of 53008885 is about 375.6495645631.
The spelling of 53008885 in words is "fifty-three million, eight thousand, eight hundred eighty-five".
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