Base | Representation |
---|---|
bin | 11111101001111… |
… | …010101101111001 |
3 | 1101000022202200121 |
4 | 133221322231321 |
5 | 2041424111410 |
6 | 124410533241 |
7 | 16106060221 |
oct | 3751725571 |
9 | 1330282617 |
10 | 531082105 |
11 | 252866934 |
12 | 129a37221 |
13 | 86048788 |
14 | 50767081 |
15 | 319579da |
hex | 1fa7ab79 |
531082105 has 8 divisors (see below), whose sum is σ = 637936200. Its totient is φ = 424440576.
The previous prime is 531082087. The next prime is 531082109. The reversal of 531082105 is 501280135.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 56169 + 531025936 = 237^2 + 23044^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 531082105 - 25 = 531082073 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 531082105.
It is not an unprimeable number, because it can be changed into a prime (531082109) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47590 + ... + 57679.
It is an arithmetic number, because the mean of its divisors is an integer number (79742025).
Almost surely, 2531082105 is an apocalyptic number.
It is an amenable number.
531082105 is a deficient number, since it is larger than the sum of its proper divisors (106854095).
531082105 is a wasteful number, since it uses less digits than its factorization.
531082105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106283.
The product of its (nonzero) digits is 1200, while the sum is 25.
The square root of 531082105 is about 23045.2187015008. The cubic root of 531082105 is about 809.8176213888.
The spelling of 531082105 in words is "five hundred thirty-one million, eighty-two thousand, one hundred five".
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