Math question: If a number is rounded to the nearest thousand and ends in the digit 8, what is the smallest possible value it could be?

The smallest possible value that satisfies this condition is 6488. When rounding the number 6480 to the nearest thousand, it remains the same. Since the smallest possible value that rounds to 6480 is 6475 and the smallest possible value that rounds to 6490 is 6485, the next number with an 8 in the ones place is 6488.

Question: What is the sum of the first 20 positive even integers starting from 6480?

To find the sum, we can use the formula for the sum of an arithmetic series. The first term is 6480, and the common difference is 2 since we are considering even numbers. The sum of the first n terms is given by the formula Sn = (n/2)(2a + (n-1)d), where Sn represents the sum, a is the first term, d is the common difference, and n is the number of terms. In this case, a = 6480, d = 2, and n = 20. Plugging these values into the formula, we have Sn = (20/2)(2(6480) + (20-1)(2)). Simplifying further, Sn = 10(12960 + 38) = 10(13007) = 130070. Therefore, the sum of the first 20 positive even integers starting from 6480 is 130070.

Math question: What is the sum of all prime factors of the number 6480?

To find the prime factors of 6480, we can factorize it as 2^4 × 3^4 × 5. The prime factors are 2, 3, and 5. Therefore, the sum of all prime factors of 6480 is 2 + 2 + 2 + 2 + 3 + 3 + 3 + 3 + 5 = 25.

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

6480 (number)

6480 is an even 4-digits composite number following 6479 and preceding 6481. In scientific notation, it is written as 6.480 × 10^3. The sum of its digits is 18. It has a total of 8 prime factors and 40 positive divisors. There are 1728 positive integers (up to 6480) that are relatively prime to 6480.

Interesting facts

6480 has 40 divisors, whose sum is 19840
The reverse of 6480 is 0846
Previous prime number is 3

Basic properties

Is Prime? no
Number parity even
Number length 4
Sum of Digits 18
Digital Root 9

Name

Name	six thousand four hundred eighty

Notation

Scientific notation	6.480 × 10^3
Engineering notation	6.480 × 10^3

Prime Factorization of 6480

Prime Factorization 2 × 2 × 2 × 2 × 15 × 3 × 3 × 3

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	8	Total number of prime factors
rad	Radical	90	Product of the distinct prime numbers

The prime factorization of 6480 is 2 × 2 × 2 × 2 × 15 × 3 × 3 × 3. Since it has a total of 8 prime factors.

Most popular turbo-numbers

2, 9, 48, 51, 432, 481, 1884, 5999, 46102, 47508, 671601, 336388, 1503637, 73174, 50691564, 40957131, 613830412, 389390752, 733745058, 4485394579

Basic calculations (n = 6480)

Multiplication

n×y

n×2	12960
n×3	19440
n×4	25920
n×5	32400

Division

n÷y

n÷2	3240
n÷3	2160
n÷3	1620
n÷5	1296

Exponentiation

n^y

n²	41990400
n³	272097792000
n⁴	1763193692160000
n⁵	1.1425495125197E+19

Nth Root

^y√n

²√n	80.498447189992
³√n	18.643395035723
⁴√n	8.9720926873273
⁵√n	5.7851550240158

Divisors of 6480

1, 2, 3, 4, 6, 8, 9, 12, 15, 16, 18, 24, 27, 30, 36, 45, 48, 54, 60, 72, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 405, 432, 540, 720, 810, 1080, 1620, 2160, 3240, 6480

40 divisors

τ	Total Divisors	40	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-6479	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.025	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	40	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 6480 can be divided by 40 positive divisors. The sum of these divisors (counting 6480) is 1, the average is 0.025.

Base conversion 6480

Base	System	Value
2	Binary	1100101010000
3	Ternary	22220000
4	Quaternary	1211100
5	Quinary	201410
6	Senary	50000
8	Octal	14520
10	Decimal	6480
12	Duodecimal	3900
16	Hexadecimal	1950
20	Vigesimal	g40
36	Base36	500

Cryptographic Hash Functions

md5	62da5a6d47be0029801ba74a17e47e1a
sha1	b04ba543fa77efa5bdae91e588e46f20481be3b9
sha256	6f24984bd099be73a012b29dc12098ec1e5a0c9eb03a482eba4f141ddec710dd
sha512	c861c8fceedd6fa8a21f9603b327d22982d4a3a638ec26f27065b002f6e3e49bc10332722f569a695de77c8f29379c753edf5533cace8b00696222c462fee20c
ripemd-160	899a0c1c80ee4d44098db0396241f254b349a8fb

6480 as geometric shapes

Circle

Radius = n

Diameter	12960
Circumference	40715.040790524
Area	131916732.1613

Sphere

Radius = n

Volume	1139760565873.6
Surface area	527666928.64519
Circumference	40715.040790524

Square

Length = n

Perimeter	25920
Area	41990400
Diagonal	9164.1038841777

Cube

Length = n

Surface area	251942400
Volume	272097792000
Space diagonal	11223.689233046

Equilateral Triangle

Length = n

Perimeter	19440
Area	18182376.557535
Altitude	5611.8446165232

Triangular Pyramid

Length = n

Surface area	18182376.557535
Volume	32067032311.514
Height	3054.7012947259