Search a number
-
+
2649029 = 9972657
BaseRepresentation
bin1010000110101111000101
311222120210012
422012233011
51134232104
6132440005
731342055
oct12065705
94876705
102649029
11154a289
12a79005
13719996
144cd565
15374d6e
hex286bc5

2649029 has 4 divisors (see below), whose sum is σ = 2652684. Its totient is φ = 2645376.

The previous prime is 2649011. The next prime is 2649067. The reversal of 2649029 is 9209462.

2649029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2024929 + 624100 = 1423^2 + 790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2649029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2648986 and 2649004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649329) 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 3 ways as a sum of consecutive naturals, for example, 332 + ... + 2325.

It is an arithmetic number, because the mean of its divisors is an integer number (663171).

It is a Poulet number, since it divides 22649028-1.

22649029 is an apocalyptic number.

It is an amenable number.

2649029 is a deficient number, since it is larger than the sum of its proper divisors (3655).

2649029 is an equidigital number, since it uses as much as digits as its factorization.

2649029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2649029 is about 1627.5837920058. The cubic root of 2649029 is about 138.3658464568.

The spelling of 2649029 in words is "two million, six hundred forty-nine thousand, twenty-nine".

Divisors: 1 997 2657 2649029