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105065 = 521013
BaseRepresentation
bin11001101001101001
312100010022
4121221221
511330230
62130225
7615212
oct315151
9170108
10105065
1171a34
1250975
1338a8c
142a409
15211e5
hex19a69

105065 has 4 divisors (see below), whose sum is σ = 126084. Its totient is φ = 84048.

The previous prime is 105037. The next prime is 105071. The reversal of 105065 is 560501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10816 + 94249 = 104^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 105065 - 214 = 88681 is a prime.

It is a super-2 number, since 2×1050652 = 22077308450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 105065.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10502 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (31521).

2105065 is an apocalyptic number.

It is an amenable number.

105065 is a deficient number, since it is larger than the sum of its proper divisors (21019).

105065 is an equidigital number, since it uses as much as digits as its factorization.

105065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21018.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 105065 is about 324.1373165805. The cubic root of 105065 is about 47.1866727191.

Adding to 105065 its reverse (560501), we get a palindrome (665566).

The spelling of 105065 in words is "one hundred five thousand, sixty-five".

Divisors: 1 5 21013 105065