821428845 (number)

821428845 is an odd 9-digits composite number following 821428844 and preceding 821428846. In scientific notation, it is written as 8.21428845 × 10^8. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 438095376 positive integers (up to 821428845) that are relatively prime to 821428845.

Interesting facts

Basic properties

Name

Name eight hundred twenty-one million four hundred twenty-eight thousand eight hundred forty-five

Notation

Scientific notation 8.21428845 × 10^8
Engineering notation 8.21428845 × 10^6

Prime Factorization of 821428845

Prime Factorization 3 × 5 × 54761923

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 821428845
Product of the distinct prime numbers

The prime factorization of 821428845 is 3 × 5 × 54761923. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 44, 25, 310, 661, 6493, 9782, 12179, 97095, 279467, 846801, 7297335, 7237465, 80748329, 23113544, 490163752, 962760125, 7924925970, 3188406063

Basic calculations (n = 821428845)

Multiplication

n×y
n×2 1642857690
n×3 2464286535
n×4 3285715380
n×5 4107144225

Division

n÷y
n÷2 410714422.5
n÷3 273809615
n÷3 205357211.25
n÷5 164285769

Exponentiation

ny
n2 674745347398034025
n3 5.5425529138229E+26
n4 4.5528128383529E+35
n5 3.7398117913094E+44

Nth Root

y√n
2√n 28660.579983664
3√n 936.53349923265
4√n 169.29435898359
5√n 60.661617998984

Divisors of 821428845

1, 3, 5, 15, 54761923, 164285769, 273809615, 821428845

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 -821428844
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 821428845 can be divided by 8 positive divisors. The sum of these divisors (counting 821428845) is 1, the average is 0.125.

Base conversion 821428845

Base System Value
2 Binary 110000111101100000001001101101
3 Ternary 2010020122220112120
4 Quaternary 300331200021231
5 Quinary 3140241210340
6 Senary 213302023153
8 Octal 6075401155
10 Decimal 821428845
12 Duodecimal 1ab117ab9
16 Hexadecimal 30f6026d
20 Vigesimal cgdic25
36 Base36 dl22jx

Cryptographic Hash Functions

md5 560d04c49b3a3f248c421b5a84083c97
sha1 70b2bb41d87096dc2a9ab6417c65afc13ba6fb2e
sha256 ce23a70f7e6999d1e7665e6c035bbbe6bc0696698031efe8d7cdeb35e651407a
sha512 aec669c27c1dc280d3d9c7a46958ccbf1283b22f2e0b6026b70c69517a292e6e84b096e399bf9794b6c96d7cf4614ddb03db51bb63233f61a3349893ae54b804
ripemd-160 c878d21822541e643fa468429d34cdd88ffe82cd

821428845 as geometric shapes

Circle

Radius = n
Diameter 1642857690
Circumference 5161189649.7975
Area 2.1197750264296E+18

Sphere

Radius = n
Volume 2.3216591354932E+27
Surface area 8.4791001057182E+18
Circumference 5161189649.7975

Square

Length = n
Perimeter 3285715380
Area 674745347398034025
Diagonal 1161675813.1235

Cube

Length = n
Surface area 4048472084388204150
Volume 5.5425529138229E+26
Space diagonal 1422756494.3426

Equilateral Triangle

Length = n
Perimeter 2464286535
Area 2.9217330596603E+17
Altitude 711378247.17131

Triangular Pyramid

Length = n
Surface area 2.9217330596603E+17
Volume 6.5319612507491E+25
Height 387225271.04116