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8522 = 24261
BaseRepresentation
bin10000101001010
3102200122
42011022
5233042
6103242
733563
oct20512
912618
108522
116448
124b22
133b57
14316a
1527d2
hex214a

8522 has 4 divisors (see below), whose sum is σ = 12786. Its totient is φ = 4260.

The previous prime is 8521. The next prime is 8527. The reversal of 8522 is 2258.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2258 = 21129.

It can be written as a sum of positive squares in only one way, i.e., 5041 + 3481 = 71^2 + 59^2 .

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 8522.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 8522.

It is not an unprimeable number, because it can be changed into a prime (8521) 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 as a sum of consecutive naturals, namely, 2129 + ... + 2132.

28522 is an apocalyptic number.

8522 is a deficient number, since it is larger than the sum of its proper divisors (4264).

8522 is a wasteful number, since it uses less digits than its factorization.

8522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263.

The product of its digits is 160, while the sum is 17.

The square root of 8522 is about 92.3146792228. The cubic root of 8522 is about 20.4258674806.

The spelling of 8522 in words is "eight thousand, five hundred twenty-two".

Divisors: 1 2 4261 8522