Search a number
-
+
108965 = 5193137
BaseRepresentation
bin11010100110100101
312112110202
4122212211
511441330
62200245
7632453
oct324645
9175422
10108965
117495a
1253085
133a79c
142b9d3
1522445
hex1a9a5

108965 has 16 divisors (see below), whose sum is σ = 145920. Its totient is φ = 77760.

The previous prime is 108961. The next prime is 108967. The reversal of 108965 is 569801.

It is not a de Polignac number, because 108965 - 22 = 108961 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2927 + ... + 2963.

It is an arithmetic number, because the mean of its divisors is an integer number (9120).

2108965 is an apocalyptic number.

It is an amenable number.

108965 is a deficient number, since it is larger than the sum of its proper divisors (36955).

108965 is a wasteful number, since it uses less digits than its factorization.

108965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 108965 is about 330.0984701570. The cubic root of 108965 is about 47.7634484200.

It can be divided in two parts, 10896 and 5, that added together give a palindrome (10901).

The spelling of 108965 in words is "one hundred eight thousand, nine hundred sixty-five".

Divisors: 1 5 19 31 37 95 155 185 589 703 1147 2945 3515 5735 21793 108965