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8168 = 231021
BaseRepresentation
bin1111111101000
3102012112
41333220
5230133
6101452
732546
oct17750
912175
108168
116156
124888
133944
142d96
152648
hex1fe8

8168 has 8 divisors (see below), whose sum is σ = 15330. Its totient is φ = 4080.

The previous prime is 8167. The next prime is 8171. The reversal of 8168 is 8618.

It can be written as a sum of positive squares in only one way, i.e., 6724 + 1444 = 82^2 + 38^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (8161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503 + ... + 518.

28168 is an apocalyptic number.

It is an amenable number.

8168 is a deficient number, since it is larger than the sum of its proper divisors (7162).

8168 is a wasteful number, since it uses less digits than its factorization.

8168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1023 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

The square root of 8168 is about 90.3769882216. The cubic root of 8168 is about 20.1390312757.

The spelling of 8168 in words is "eight thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 1021 2042 4084 8168