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5643013 = 21532621
BaseRepresentation
bin10101100001101100000101
3101121200202111
4111201230011
52421034023
6320541021
765651635
oct25415405
911550674
105643013
113204752
121a81771
13122767c
14a6c6c5
1576700d
hex561b05

5643013 has 4 divisors (see below), whose sum is σ = 5647788. Its totient is φ = 5638240.

The previous prime is 5642999. The next prime is 5643041. The reversal of 5643013 is 3103465.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3103465 = 5620693.

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 3265249 = 1542^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 5643013 - 217 = 5511941 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643413) 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, 843 + ... + 3463.

It is an arithmetic number, because the mean of its divisors is an integer number (1411947).

Almost surely, 25643013 is an apocalyptic number.

It is an amenable number.

5643013 is a deficient number, since it is larger than the sum of its proper divisors (4775).

5643013 is a wasteful number, since it uses less digits than its factorization.

5643013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 5643013 is about 2375.5026836440. The cubic root of 5643013 is about 178.0343009267.

Adding to 5643013 its reverse (3103465), we get a palindrome (8746478).

The spelling of 5643013 in words is "five million, six hundred forty-three thousand, thirteen".

Divisors: 1 2153 2621 5643013