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6830213 = 131733037
BaseRepresentation
bin11010000011100010000101
3110212000021212
4122003202011
53222031323
6402221205
7112025105
oct32034205
913760255
106830213
113945705
122354805
131551b60
14c9b205
158edb78
hex683885

6830213 has 8 divisors (see below), whose sum is σ = 7400568. Its totient is φ = 6266304.

The previous prime is 6830191. The next prime is 6830221. The reversal of 6830213 is 3120386.

6830213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2365444 + 4464769 = 1538^2 + 2113^2 .

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 6830213 - 28 = 6829957 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 (6830273) 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, 731 + ... + 3767.

It is an arithmetic number, because the mean of its divisors is an integer number (925071).

Almost surely, 26830213 is an apocalyptic number.

It is an amenable number.

6830213 is a deficient number, since it is larger than the sum of its proper divisors (570355).

6830213 is a wasteful number, since it uses less digits than its factorization.

6830213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 6830213 is about 2613.4676198492. The cubic root of 6830213 is about 189.7338193272.

Adding to 6830213 its reverse (3120386), we get a palindrome (9950599).

The spelling of 6830213 in words is "six million, eight hundred thirty thousand, two hundred thirteen".

Divisors: 1 13 173 2249 3037 39481 525401 6830213