Question: What is the sum of the digits in the number 8440 when it is divided by 4?

To find the sum of the digits in the number 8440 when it is divided by 4, we first divide 8440 by 4, which gives us 2110. Then we add up the digits in 2110: 2 + 1 + 1 + 0 = 4. Therefore, the sum of the digits in 8440 when divided by 4 is 4.

Question: What is the sum of the squares of the factors of 8440?

To find the sum of the squares of the factors of 8440, we first need to determine the prime factorization of 8440. When we break it down, we get 2^3 * 5 * 211. Now, the factors of 8440 are formed by combining different powers of 2, 5, and 211. We can calculate them by taking 0, 1, 2, or 3 as exponents for 2; 0 or 1 for 5; and 0 or 1 for 211. Counting all possible combinations, we have 4 * 2 * 2 = 16 factors. The squares of the factors are found by squaring each individual factor. So, the squared factors are: (2^0 * 5^0 * 211^0)^2, (2^1 * 5^0 * 211^0)^2, ..., (2^3 * 5^1 * 211^1)^2. Adding up the squared factors, we get the sum: (1^2 + 2^2 + 3^2 + 4^2) * (1^2 + 1^2) * (1^2 + 211^2) = 30 * 2 * 44521 = 267,126,000. Therefore, the sum of the squares of the factors of 8440 is 267,126,000.

Question: If 8440 is divided by the product of the sum of its digits and the number of digits, what is the quotient?

To find the quotient, we first calculate the sum of the digits in 8440, which is 8 + 4 + 4 + 0 = 16. The number of digits in 8440 is 4. Multiplying the sum of the digits (16) by the number of digits (4), we get 16 * 4 = 64. Now, if we divide 8440 by 64, we obtain the quotient. Dividing 8440 by 64 results in 131.875. Therefore, the quotient when dividing 8440 by the product of the sum of its digits and the number of digits is 131.875.

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

8440 (number)

8440 is an even 4-digits composite number following 8439 and preceding 8441. In scientific notation, it is written as 8.440 × 10^3. The sum of its digits is 16. It has a total of 5 prime factors and 16 positive divisors. There are 3360 positive integers (up to 8440) that are relatively prime to 8440.

Interesting facts

8440 has 16 divisors, whose sum is 19080
The reverse of 8440 is 0448
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 4
Sum of Digits 16
Digital Root 7

Name

Name	eight thousand four hundred forty

Notation

Scientific notation	8.440 × 10^3
Engineering notation	8.440 × 10^3

Prime Factorization of 8440

Prime Factorization 2 × 2 × 2 × 5 × 211

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	2110	Product of the distinct prime numbers

The prime factorization of 8440 is 2 × 2 × 2 × 5 × 211. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 5, 96, 60, 278, 30, 4533, 2310, 51929, 11341, 616251, 317798, 8066450, 6490410, 72488320, 63778090, 183952408, 441016304, 381622957, 1035327759

Basic calculations (n = 8440)

Multiplication

n×y

n×2	16880
n×3	25320
n×4	33760
n×5	42200

Division

n÷y

n÷2	4220
n÷3	2813.3333333333
n÷3	2110
n÷5	1688

Exponentiation

n^y

n²	71233600
n³	601211584000
n⁴	5074225768960000
n⁵	4.2826465490022E+19

Nth Root

^y√n

²√n	91.869472622847
³√n	20.360142605625
⁴√n	9.5848564216084
⁵√n	6.0991384135188

Divisors of 8440

1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-8439	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 8440 can be divided by 16 positive divisors. The sum of these divisors (counting 8440) is 1, the average is 0.0625.

Base conversion 8440

Base	System	Value
2	Binary	10000011111000
3	Ternary	102120121
4	Quaternary	2003320
5	Quinary	232230
6	Senary	103024
8	Octal	20370
10	Decimal	8440
12	Duodecimal	4a74
16	Hexadecimal	20f8
20	Vigesimal	1120
36	Base36	6ig

Cryptographic Hash Functions

md5	eba55fca4575e35eec8587f10ba60a43
sha1	9781311d2df0c033eb6741662fe20a7fc18bba46
sha256	6550bd8d08aa1c1a57bc6ba08616075eb90b5075bced1c82542dd969acc36060
sha512	7603e523b7913e21858bea54036ac0a3cfaac7b9c6a8389248133e283a9f21fbb554ec71c727cd4558d8a2cd733b9583c25dcaff7979d23372169c65cc6c5e2a
ripemd-160	04745616226a9eae8d39807c1b688e6dfaf1ee3b

8440 as geometric shapes

Circle

Radius = n

Diameter	16880
Circumference	53030.083992596
Area	223786954.44875

Sphere

Radius = n

Volume	2518349194063.3
Surface area	895147817.79502
Circumference	53030.083992596

Square

Length = n

Perimeter	33760
Area	71233600
Diagonal	11935.962466429

Cube

Length = n

Surface area	427401600
Volume	601211584000
Space diagonal	14618.508815881

Equilateral Triangle

Length = n

Perimeter	25320
Area	30845053.60151
Altitude	7309.2544079407

Triangular Pyramid

Length = n

Surface area	30845053.60151
Volume	70853464662.384
Height	3978.6541554763