Math question: If I divide a number by 5, subtract 17, and then multiply by 8, the result is 679. What is the original number?

Let's assume the original number is x. We can set up the equation: (x ÷ 5) - 17 = 679. By solving the equation, we can find the value of x. First, we simplify the equation by multiplying both sides by 5 to get x - 85 = 3395. Then, adding 85 to both sides gives us x = 3480. Therefore, the original number is 3480.

Math question: If 679 is multiplied by 3, and the resulting product is divided by 2, what is the final answer?

To solve this, we multiply 679 by 3, getting 2,037. Then we divide it by 2 to obtain 1,018.5 as the final answer.

Math question: Find the multiples of 679 that are divisible by both 13 and 17. How many such multiples are there?

To find the multiples of 679 that are divisible by both 13 and 17, we need to first find the least common multiple (LCM) of 13 and 17, which is 221. Then, we divide 679 by the LCM to find a common factor of 3. Next, we multiply the LCM by 3 to get 663, the smallest multiple of 679 divisible by both 13 and 17. As for finding the largest multiple less than 200 characters, calculate 679 x 3 = 2037. By dividing this by 221, we find that the highest multiple less than 200 characters is 9. Therefore, there are 9 multiples of 679 divisible by both 13 and 17.

Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

679 (number)

679 is an odd 3-digits composite number following 678 and preceding 680. In scientific notation, it is written as 6.79 × 10^2. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 576 positive integers (up to 679) that are relatively prime to 679.

Interesting facts

679 has 4 divisors, whose sum is 784
The reverse of 679 is 976
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 3
Sum of Digits 22
Digital Root 4

Name

Name	six hundred seventy-nine

Notation

Scientific notation	6.79 × 10^2
Engineering notation	6.79 × 10^0

Prime Factorization of 679

Prime Factorization 7 × 97

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	679	Product of the distinct prime numbers

The prime factorization of 679 is 7 × 97. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 10, 29, 32, 638, 732, 8233, 2269, 68006, 53845, 88826, 473666, 1550953, 2655288, 66673904, 26654647, 836198625, 766475642, 8537077298, 3571891649

Basic calculations (n = 679)

Multiplication

n×y

n×2	1358
n×3	2037
n×4	2716
n×5	3395

Division

n÷y

n÷2	339.5
n÷3	226.33333333333
n÷3	169.75
n÷5	135.8

Exponentiation

n^y

n²	461041
n³	313046839
n⁴	212558803681
n⁵	144327427699399

Nth Root

^y√n

²√n	26.057628441591
³√n	8.789346612215
⁴√n	5.1046673193844
⁵√n	3.684460923457

Divisors of 679

1, 7, 97, 679

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-678	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 679 can be divided by 4 positive divisors. The sum of these divisors (counting 679) is 1, the average is 0.25.

Base conversion 679

Base	System	Value
2	Binary	1010100111
3	Ternary	221011
4	Quaternary	22213
5	Quinary	10204
6	Senary	3051
8	Octal	1247
10	Decimal	679
12	Duodecimal	487
16	Hexadecimal	2a7
20	Vigesimal	1dj
36	Base36	iv

Cryptographic Hash Functions

md5	ca9c267dad0305d1a6308d2a0cf1c39c
sha1	eac6819d6e578da7ba6eed2a8df7ca3d425246c8
sha256	34e2ad7b31cd9ee87c038c10fd6fbe310314ba67abb73a686f0d1087267d7a1d
sha512	c39eff6fd21b45de7bae9c3ce8cfc1905c8565205b860ba13b7fa49d023a5efa3f8ede20ababb1f001840db16da31f542a500b12329cdb4e9c84ae11cb51aed6
ripemd-160	9d82a3f8b497daf87a2e4a9912c505d220146f32

679 as geometric shapes

Circle

Radius = n

Diameter	1358
Circumference	4266.2828235749
Area	1448403.0186037

Sphere

Radius = n

Volume	1311287532.8425
Surface area	5793612.0744148
Circumference	4266.2828235749

Square

Length = n

Perimeter	2716
Area	461041
Diagonal	960.25100885133

Cube

Length = n

Surface area	2766246
Volume	313046839
Space diagonal	1176.0624983393

Equilateral Triangle

Length = n

Perimeter	2037
Area	199636.60909309
Altitude	588.03124916963

Triangular Pyramid

Length = n

Surface area	199636.60909309
Volume	36892923.780986
Height	320.08366961711