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BaseRepresentation
bin100000010001
32211111
4200101
531230
613321
76010
oct4021
92744
102065
111608
121241
13c2b
14a77
1592a
hex811

2065 has 8 divisors (see below), whose sum is σ = 2880. Its totient is φ = 1392.

The previous prime is 2063. The next prime is 2069. The reversal of 2065 is 5602.

Adding to 2065 its reverse (5602), we get a palindrome (7667).

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

It is a cyclic number.

It is not a de Polignac number, because 2065 - 21 = 2063 is a prime.

2065 is a lucky number.

It is a nialpdrome in base 3, base 14 and base 16.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2063) 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, 6 + ... + 64.

It is an arithmetic number, because the mean of its divisors is an integer number (360).

It is an amenable number.

2065 is a deficient number, since it is larger than the sum of its proper divisors (815).

2065 is an equidigital number, since it uses as much as digits as its factorization.

2065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2065 is about 45.4422710700. The cubic root of 2065 is about 12.7342494216.

The spelling of 2065 in words is "two thousand, sixty-five".

Divisors: 1 5 7 35 59 295 413 2065