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2284813 = 14471579
BaseRepresentation
bin1000101101110100001101
311022002011201
420231310031
51041103223
6120545501
725264156
oct10556415
94262151
102284813
111320683
12922291
1361cc7b
1443692d
15301ead
hex22dd0d

2284813 has 4 divisors (see below), whose sum is σ = 2287840. Its totient is φ = 2281788.

The previous prime is 2284757. The next prime is 2284831. The reversal of 2284813 is 3184822.

2284813 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 Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3184822 = 21592411.

It is a cyclic number.

It is not a de Polignac number, because 2284813 - 221 = 187661 is a prime.

It is a Duffinian number.

2284813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2284873) 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, 658 + ... + 2236.

It is an arithmetic number, because the mean of its divisors is an integer number (571960).

22284813 is an apocalyptic number.

It is an amenable number.

2284813 is a deficient number, since it is larger than the sum of its proper divisors (3027).

2284813 is a wasteful number, since it uses less digits than its factorization.

2284813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026.

The product of its digits is 3072, while the sum is 28.

The square root of 2284813 is about 1511.5597904152. The cubic root of 2284813 is about 131.7094350906.

Subtracting 2284813 from its reverse (3184822), we obtain a palindrome (900009).

It can be divided in two parts, 228481 and 3, that added together give a square (228484 = 4782).

The spelling of 2284813 in words is "two million, two hundred eighty-four thousand, eight hundred thirteen".

Divisors: 1 1447 1579 2284813