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8195 = 511149
BaseRepresentation
bin10000000000011
3102020112
42000003
5230240
6101535
732615
oct20003
912215
108195
116180
1248ab
133965
142db5
152665
hex2003

8195 has 8 divisors (see below), whose sum is σ = 10800. Its totient is φ = 5920.

The previous prime is 8191. The next prime is 8209. The reversal of 8195 is 5918.

8195 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8195 - 22 = 8191 is a prime.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 8195.

It is not an unprimeable number, because it can be changed into a prime (8191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20 + ... + 129.

It is an arithmetic number, because the mean of its divisors is an integer number (1350).

28195 is an apocalyptic number.

8195 is a deficient number, since it is larger than the sum of its proper divisors (2605).

8195 is a wasteful number, since it uses less digits than its factorization.

8195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165.

The product of its digits is 360, while the sum is 23.

The square root of 8195 is about 90.5262392901. The cubic root of 8195 is about 20.1611972813.

It can be divided in two parts, 819 and 5, that multiplied together give a triangular number (4095 = T90).

The spelling of 8195 in words is "eight thousand, one hundred ninety-five".

Divisors: 1 5 11 55 149 745 1639 8195