128818 (number)

128818 is an even 6-digits composite number following 128817 and preceding 128819. In scientific notation, it is written as 1.28818 × 10^5. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 62160 positive integers (up to 128818) that are relatively prime to 128818.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight thousand eight hundred eighteen

Notation

Scientific notation 1.28818 × 10^5
Engineering notation 1.28818 × 10^3

Prime Factorization of 128818

Prime Factorization 2 × 29 × 2221

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128818
Product of the distinct prime numbers

The prime factorization of 128818 is 2 × 29 × 2221. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128818)

Multiplication

n×y
n×2 257636
n×3 386454
n×4 515272
n×5 644090

Division

n÷y
n÷2 64409
n÷3 42939.333333333
n÷3 32204.5
n÷5 25763.6

Exponentiation

ny
n2 16594077124
n3 2137615826959432
n4 2.7536339559726E+20
n5 3.5471761894048E+25

Nth Root

y√n
2√n 358.912245542
3√n 50.503969886913
4√n 18.944979428387
5√n 10.519505146406

Divisors of 128818

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128817
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128818 can be divided by 8 positive divisors. The sum of these divisors (counting 128818) is 1, the average is 0.125.

Base conversion 128818

Base System Value
2 Binary 11111011100110010
3 Ternary 20112201001
4 Quaternary 133130302
5 Quinary 13110233
6 Senary 2432214
8 Octal 373462
10 Decimal 128818
12 Duodecimal 6266a
16 Hexadecimal 1f732
20 Vigesimal g20i
36 Base36 2rea

Cryptographic Hash Functions

md5 acb08455e1616053523772c2517387b2
sha1 3054fd326c065714fcce6421b8918ccd05027b5b
sha256 393044c35bbf3e0acc00b2ac07a5a4c00f549ec575ab73d53e0c40669b63bb46
sha512 b7731ccd79d1079c22b2f857b9342dc9e9060564bbffaa57851427e40c83d2931761f9c9b8e8600fccf60da43ee72c074df4b11dc7709ec3be15af33284da787
ripemd-160 e6495fc4e44524e56bc8e724c07730aba4eaf9ea

128818 as geometric shapes

Circle

Radius = n
Diameter 257636
Circumference 809387.36490026
Area 52131830785.861

Sphere

Radius = n
Volume 8.954024237564E+15
Surface area 208527323143.44
Circumference 809387.36490026

Square

Length = n
Perimeter 515272
Area 16594077124
Diagonal 182176.16267778

Cube

Length = n
Surface area 99564462744
Volume 2137615826959432
Space diagonal 223119.32092941

Equilateral Triangle

Length = n
Perimeter 386454
Area 7185446170.8711
Altitude 111559.6604647

Triangular Pyramid

Length = n
Surface area 7185446170.8711
Volume 2.5192044113578E+14
Height 60725.387559259