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8182 = 24091
BaseRepresentation
bin1111111110110
3102020001
41333312
5230212
6101514
732566
oct17766
912201
108182
116169
12489a
133955
142da6
152657
hex1ff6

8182 has 4 divisors (see below), whose sum is σ = 12276. Its totient is φ = 4090.

The previous prime is 8179. The next prime is 8191. The reversal of 8182 is 2818.

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: 2818 = 21409.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2044 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (3069).

28182 is an apocalyptic number.

8182 is a deficient number, since it is larger than the sum of its proper divisors (4094).

8182 is a wasteful number, since it uses less digits than its factorization.

8182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its digits is 128, while the sum is 19.

The square root of 8182 is about 90.4544084056. The cubic root of 8182 is about 20.1505308474.

It can be divided in two parts, 818 and 2, that added together give a triangular number (820 = T40).

The spelling of 8182 in words is "eight thousand, one hundred eighty-two".

Divisors: 1 2 4091 8182