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6830393 = 8817753
BaseRepresentation
bin11010000011100100111001
3110212000112112
4122003210321
53222033033
6402222105
7112025453
oct32034471
913760475
106830393
113945859
122354935
131551c6b
14c9b2d3
158edc48
hex683939

6830393 has 4 divisors (see below), whose sum is σ = 6839028. Its totient is φ = 6821760.

The previous prime is 6830377. The next prime is 6830407. The reversal of 6830393 is 3930386.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3930386 = 21965193.

It can be written as a sum of positive squares in 2 ways, for example, as 4631104 + 2199289 = 2152^2 + 1483^2 .

It is a cyclic number.

It is not a de Polignac number, because 6830393 - 24 = 6830377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6830303) 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, 2996 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (1709757).

Almost surely, 26830393 is an apocalyptic number.

It is an amenable number.

6830393 is a deficient number, since it is larger than the sum of its proper divisors (8635).

6830393 is an equidigital number, since it uses as much as digits as its factorization.

6830393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 6830393 is about 2613.5020566282. The cubic root of 6830393 is about 189.7354860291.

The spelling of 6830393 in words is "six million, eight hundred thirty thousand, three hundred ninety-three".

Divisors: 1 881 7753 6830393