Math question: What is the sum of the digits of the number 648?

To find the sum of the digits in the number 648, we add the individual digits: 6 + 4 + 8 = 18.

Math question: If every digit of the number 648 is multiplied together, what is the product?

To find the product of all the digits of the number 648, we multiply the digits together. Starting with 6, then multiplying by 4, and finally multiplying by 8, the result is 6 × 4 × 8 = 192. So, the product of all the digits of the number 648 is 192.

Math Question: If 648 is divided by a certain number and then added to its square root, the result is 288. What is the number?

Let the unknown number be x. According to the given information, we can set up an equation: 648/x + √x = 288. Rearranging the equation, we get 648 + x√x = 288x. To solve this equation, we need to make an educated guess and iterate until we find the value where both sides are approximately equal. Through trial and error, we find that x ≈ 18. Substituting this value back into the equation, we can verify that 648/18 + √18 ≈ 36 + 4.2426 ≈ 288. Hence, the number we are looking for is approximately 18.

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

648 (number)

648 is an even 3-digits composite number following 647 and preceding 649. In scientific notation, it is written as 6.48 × 10^2. The sum of its digits is 18. It has a total of 6 prime factors and 20 positive divisors. There are 216 positive integers (up to 648) that are relatively prime to 648.

Interesting facts

648 has 20 divisors, whose sum is 1815
The reverse of 648 is 846
Previous prime number is 3

Basic properties

Is Prime? no
Number parity even
Number length 3
Sum of Digits 18
Digital Root 9

Name

Name	six hundred forty-eight

Notation

Scientific notation	6.48 × 10^2
Engineering notation	6.48 × 10^0

Prime Factorization of 648

Prime Factorization 2 × 2 × 2 × 9 × 3 × 3

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	6	Total number of prime factors
rad	Radical	54	Product of the distinct prime numbers

The prime factorization of 648 is 2 × 2 × 2 × 9 × 3 × 3. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 10, 23, 52, 365, 939, 6948, 9349, 6293, 67594, 852593, 74302, 8616873, 3580517, 47960063, 97953463, 173359440, 144902340, 4476098178, 189322250

Basic calculations (n = 648)

Multiplication

n×y

n×2	1296
n×3	1944
n×4	2592
n×5	3240

Division

n÷y

n÷2	324
n÷3	216
n÷3	162
n÷5	129.6

Exponentiation

n^y

n²	419904
n³	272097792
n⁴	176319369216
n⁵	114254951251968

Nth Root

^y√n

²√n	25.455844122716
³√n	8.6534974218444
⁴√n	5.0453784915223
⁵√n	3.6501860513592

Divisors of 648

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648

20 divisors

τ	Total Divisors	20	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-647	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.05	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	20	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 648 can be divided by 20 positive divisors. The sum of these divisors (counting 648) is 1, the average is 0.05.

Base conversion 648

Base	System	Value
2	Binary	1010001000
3	Ternary	220000
4	Quaternary	22020
5	Quinary	10043
6	Senary	3000
8	Octal	1210
10	Decimal	648
12	Duodecimal	460
16	Hexadecimal	288
20	Vigesimal	1c8
36	Base36	i0

Cryptographic Hash Functions

md5	443cb001c138b2561a0d90720d6ce111
sha1	4de62d12209f2c3b18bc8a19eca399e914835762
sha256	c86a2932e1c79343a3c16fb218b9944791aaeedd3e30c87d1c7f505c0e588f7c
sha512	9f833a6e34e560b569e928b9c40ace26afbfe074d3388765134a2f36d1271125edaa98ed65a96635a76485f2204dc3384adea373065e9feab51f534fb44c11c5
ripemd-160	0b73d69e8a5ad961add53746445dccd6cf958400

648 as geometric shapes

Circle

Radius = n

Diameter	1296
Circumference	4071.5040790524
Area	1319167.321613

Sphere

Radius = n

Volume	1139760565.8736
Surface area	5276669.2864519
Circumference	4071.5040790524

Square

Length = n

Perimeter	2592
Area	419904
Diagonal	916.41038841777

Cube

Length = n

Surface area	2519424
Volume	272097792
Space diagonal	1122.3689233046

Equilateral Triangle

Length = n

Perimeter	1944
Area	181823.76557535
Altitude	561.18446165232

Triangular Pyramid

Length = n

Surface area	181823.76557535
Volume	32067032.311514
Height	305.47012947259