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8530 = 25853
BaseRepresentation
bin10000101010010
3102200221
42011102
5233110
6103254
733604
oct20522
912627
108530
116455
124b2a
133b62
143174
1527da
hex2152

8530 has 8 divisors (see below), whose sum is σ = 15372. Its totient is φ = 3408.

The previous prime is 8527. The next prime is 8537. The reversal of 8530 is 358.

8530 is nontrivially palindromic in base 4.

8530 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7569 + 961 = 87^2 + 31^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

8530 is strictly pandigital in base 6.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417 + ... + 436.

28530 is an apocalyptic number.

8530 is a deficient number, since it is larger than the sum of its proper divisors (6842).

8530 is a wasteful number, since it uses less digits than its factorization.

8530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 8530 is about 92.3579991122. The cubic root of 8530 is about 20.4322570540.

Adding to 8530 its reverse (358), we get a palindrome (8888).

The spelling of 8530 in words is "eight thousand, five hundred thirty".

Divisors: 1 2 5 10 853 1706 4265 8530