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2041 = 13157
BaseRepresentation
bin11111111001
32210121
4133321
531131
613241
75644
oct3771
92717
102041
111596
121221
13c10
14a5b
15911
hex7f9

2041 has 4 divisors (see below), whose sum is σ = 2212. Its totient is φ = 1872.

The previous prime is 2039. The next prime is 2053. The reversal of 2041 is 1402.

Adding to 2041 its reverse (1402), we get a palindrome (3443).

It can be divided in two parts, 20 and 41, that multiplied together give a triangular number (820 = T40).

2041 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1402 = 2701.

It can be written as a sum of positive squares in 2 ways, for example, as 441 + 1600 = 21^2 + 40^2 .

It is not a de Polignac number, because 2041 - 21 = 2039 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13 and base 15.

It is not an unprimeable number, because it can be changed into a prime (2011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66 + ... + 91.

It is an arithmetic number, because the mean of its divisors is an integer number (553).

It is a 12-hyperperfect number.

It is an amenable number.

2041 is a deficient number, since it is larger than the sum of its proper divisors (171).

2041 is a wasteful number, since it uses less digits than its factorization.

2041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2041 is about 45.1774279923. The cubic root of 2041 is about 12.6847234009.

The spelling of 2041 in words is "two thousand, forty-one", and thus it is an iban number.

Divisors: 1 13 157 2041