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2666041 = 7254409
BaseRepresentation
bin1010001010111000111001
312000110010021
422022320321
51140303131
6133050441
731442500
oct12127071
95013107
102666041
111561044
12a86a21
13724651
144d5837
15379e11
hex28ae39

2666041 has 6 divisors (see below), whose sum is σ = 3101370. Its totient is φ = 2285136.

The previous prime is 2666039. The next prime is 2666051. The reversal of 2666041 is 1406662.

It is a happy number.

2666041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1863225 + 802816 = 1365^2 + 896^2 .

It is not a de Polignac number, because 2666041 - 21 = 2666039 is a prime.

It is a super-2 number, since 2×26660412 = 14215549227362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2665997 and 2666015.

It is not an unprimeable number, because it can be changed into a prime (2666021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27156 + ... + 27253.

It is an arithmetic number, because the mean of its divisors is an integer number (516895).

22666041 is an apocalyptic number.

It is an amenable number.

2666041 is a deficient number, since it is larger than the sum of its proper divisors (435329).

2666041 is an equidigital number, since it uses as much as digits as its factorization.

2666041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54423 (or 54416 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2666041 is about 1632.8015801070. The cubic root of 2666041 is about 138.6614086959.

The spelling of 2666041 in words is "two million, six hundred sixty-six thousand, forty-one".

Divisors: 1 7 49 54409 380863 2666041