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2643313 = 17612549
BaseRepresentation
bin1010000101010101110001
311222021221111
422011111301
51134041223
6132353321
731316311
oct12052561
94867844
102643313
111545a62
12a75841
137171ba
144cb441
1537330d
hex285571

2643313 has 8 divisors (see below), whose sum is σ = 2845800. Its totient is φ = 2446080.

The previous prime is 2643307. The next prime is 2643331. The reversal of 2643313 is 3133462.

It can be written as a sum of positive squares in 4 ways, for example, as 589824 + 2053489 = 768^2 + 1433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2643313 - 213 = 2635121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2643343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (355725).

22643313 is an apocalyptic number.

It is an amenable number.

2643313 is a deficient number, since it is larger than the sum of its proper divisors (202487).

2643313 is a wasteful number, since it uses less digits than its factorization.

2643313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627.

The product of its digits is 1296, while the sum is 22.

The square root of 2643313 is about 1625.8268665513. The cubic root of 2643313 is about 138.2662541507.

Adding to 2643313 its reverse (3133462), we get a palindrome (5776775).

The spelling of 2643313 in words is "two million, six hundred forty-three thousand, three hundred thirteen".

Divisors: 1 17 61 1037 2549 43333 155489 2643313