Math question: What is the sum of the digits in the number 689?

To find the sum of the digits in 689, we first break it down into its individual digits: 6, 8, and 9. Then, by adding these digits together, we get the sum 6 + 8 + 9 = 23. Hence, the sum of the digits in 689 is 23.

Math question: What is the sum of the square root of 689 and the cube root of 689, rounded to the nearest tenth?

To find the sum, we first calculate the square root of 689, which is approximately 26.229. Then we compute the cube root of 689, which is approximately 9.103. Adding these gives us 35.332, rounding to the nearest tenth. Therefore, the sum of the square root and the cube root of 689 is 35.3.

Math question: If the number 689 is multiplied by 3, added to 120, and then divided by 7, what is the resulting value?

To find the resulting value, we follow the given operations step by step. First, multiply 689 by 3: 689 * 3 = 2067. Next, add 120 to the product: 2067 + 120 = 2187. Finally, divide the sum by 7: 2187 / 7 = 312.4285714285714 (rounded to 15 decimal places). Therefore, the resulting value is approximately 312.4285714285714.

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

689 (number)

689 is an odd 3-digits composite number following 688 and preceding 690. In scientific notation, it is written as 6.89 × 10^2. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 624 positive integers (up to 689) that are relatively prime to 689.

Interesting facts

689 has 4 divisors, whose sum is 756
The reverse of 689 is 986
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 3
Sum of Digits 23
Digital Root 5

Name

Name	six hundred eighty-nine

Notation

Scientific notation	6.89 × 10^2
Engineering notation	6.89 × 10^0

Prime Factorization of 689

Prime Factorization 13 × 53

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	689	Product of the distinct prime numbers

The prime factorization of 689 is 13 × 53. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 6, 38, 90, 383, 858, 2649, 1847, 61911, 88362, 808839, 156405, 1067719, 3725563, 75741764, 82379222, 708608602, 88695086, 8017957271, 4464819464

Basic calculations (n = 689)

Multiplication

n×y

n×2	1378
n×3	2067
n×4	2756
n×5	3445

Division

n÷y

n÷2	344.5
n÷3	229.66666666667
n÷3	172.25
n÷5	137.8

Exponentiation

n^y

n²	474721
n³	327082769
n⁴	225360027841
n⁵	155273059182449

Nth Root

^y√n

²√n	26.248809496813
³√n	8.8322849908913
⁴√n	5.1233592004478
⁵√n	3.6952501592383

Divisors of 689

1, 13, 53, 689

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	-688	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 689 can be divided by 4 positive divisors. The sum of these divisors (counting 689) is 1, the average is 0.25.

Base conversion 689

Base	System	Value
2	Binary	1010110001
3	Ternary	221112
4	Quaternary	22301
5	Quinary	10224
6	Senary	3105
8	Octal	1261
10	Decimal	689
12	Duodecimal	495
16	Hexadecimal	2b1
20	Vigesimal	1e9
36	Base36	j5

Cryptographic Hash Functions

md5	07a96b1f61097ccb54be14d6a47439b0
sha1	53c53c5d2b630c0d912264bb9edf8cf6f0afa260
sha256	fc4fb94d36f45aa9d13358022455e55db4b6f0eb536a1b2897c90dfd3df9eb9b
sha512	affb35d9483f4468ac879d5279b64f1d57a9754061b47beafc877e92874610cea38d3200499a59cb6927b568871dcf4e80ec7984e680db64198be72a75aa6d51
ripemd-160	13ec9329018cac9c1f252af2b14f75d8ac1853df

689 as geometric shapes

Circle

Radius = n

Diameter	1378
Circumference	4329.1146766467
Area	1491380.0061048

Sphere

Radius = n

Volume	1370081098.9416
Surface area	5965520.0244192
Circumference	4329.1146766467

Square

Length = n

Perimeter	2756
Area	474721
Diagonal	974.39314447506

Cube

Length = n

Surface area	2848326
Volume	327082769
Space diagonal	1193.383006415

Equilateral Triangle

Length = n

Perimeter	2067
Area	205560.22285498
Altitude	596.69150320748

Triangular Pyramid

Length = n

Surface area	205560.22285498
Volume	38547073.994862
Height	324.79771482502