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2823013 = 12292297
BaseRepresentation
bin1010110001001101100101
312022102110001
422301031211
51210314023
6140301301
732665234
oct12611545
95272401
102823013
111658a76
12b41831
1377ac2b
14536b1b
153ab6ad
hex2b1365

2823013 has 4 divisors (see below), whose sum is σ = 2826540. Its totient is φ = 2819488.

The previous prime is 2822987. The next prime is 2823047. The reversal of 2823013 is 3103282.

It is a happy number.

2823013 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2256004 + 567009 = 1502^2 + 753^2 .

It is a cyclic number.

It is not a de Polignac number, because 2823013 - 213 = 2814821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2823053) 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, 81 + ... + 2377.

It is an arithmetic number, because the mean of its divisors is an integer number (706635).

22823013 is an apocalyptic number.

It is an amenable number.

2823013 is a deficient number, since it is larger than the sum of its proper divisors (3527).

2823013 is a wasteful number, since it uses less digits than its factorization.

2823013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2823013 is about 1680.1824305712. The cubic root of 2823013 is about 141.3310631879.

Adding to 2823013 its reverse (3103282), we get a palindrome (5926295).

The spelling of 2823013 in words is "two million, eight hundred twenty-three thousand, thirteen".

Divisors: 1 1229 2297 2823013