821428880 (number)

821428880 is an even 9-digits composite number following 821428879 and preceding 821428881. In scientific notation, it is written as 8.21428880 × 10^8. The sum of its digits is 41. It has a total of 6 prime factors and 20 positive divisors. There are 328571520 positive integers (up to 821428880) that are relatively prime to 821428880.

Interesting facts

Basic properties

Name

Name eight hundred twenty-one million four hundred twenty-eight thousand eight hundred eighty

Notation

Scientific notation 8.21428880 × 10^8
Engineering notation 8.21428880 × 10^6

Prime Factorization of 821428880

Prime Factorization 2 × 2 × 2 × 2 × 5 × 10267861

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 102678610
Product of the distinct prime numbers

The prime factorization of 821428880 is 2 × 2 × 2 × 2 × 5 × 10267861. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 9, 17, 20, 235, 204, 1908, 328, 85360, 41828, 831684, 329824, 6325038, 6926597, 91671458, 87695160, 617017841, 608734001, 9056204803, 5361778666

Basic calculations (n = 821428880)

Multiplication

n×y
n×2 1642857760
n×3 2464286640
n×4 3285715520
n×5 4107144400

Division

n÷y
n÷2 410714440
n÷3 273809626.66667
n÷3 205357220
n÷5 164285776

Exponentiation

ny
n2 674745404898054400
n3 5.5425536223056E+26
n4 4.5528136143104E+35
n5 3.7398125880517E+44

Nth Root

y√n
2√n 28660.580594259
3√n 936.53351253413
4√n 169.29436078694
5√n 60.661618515926

Divisors of 821428880

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10267861, 20535722, 41071444, 51339305, 82142888, 102678610, 164285776, 205357220, 410714440, 821428880

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 -821428879
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 821428880 can be divided by 20 positive divisors. The sum of these divisors (counting 821428880) is 1, the average is 0.05.

Base conversion 821428880

Base System Value
2 Binary 110000111101100000001010010000
3 Ternary 2010020122220120212
4 Quaternary 300331200022100
5 Quinary 3140241211010
6 Senary 213302023252
8 Octal 6075401220
10 Decimal 821428880
12 Duodecimal 1ab117b28
16 Hexadecimal 30f60290
20 Vigesimal cgdic40
36 Base36 dl22kw

Cryptographic Hash Functions

md5 cbb3372bfe3f30797f2dbd73267c8a20
sha1 8ff599c93da8c96824123d3d029532dc791b3d7a
sha256 53e0ea63a52da5d788986982678e3fe11cb2ba45f05eb0274fc95786b36f7ad3
sha512 be9b3601d55d4b22548e2dc73e746fa6264142c1557d6b023729ee7c8518cb5676b5abc1ce899157ff0e567a9814209776a393834b39b7de047fddfdea72f5b0
ripemd-160 16f7685eb3d38f6a45fb69a9e457a2313762b072

821428880 as geometric shapes

Circle

Radius = n
Diameter 1642857760
Circumference 5161189869.709
Area 2.1197752070712E+18

Sphere

Radius = n
Volume 2.3216594322617E+27
Surface area 8.4791008282848E+18
Circumference 5161189869.709

Square

Length = n
Perimeter 3285715520
Area 674745404898054400
Diagonal 1161675862.6209

Cube

Length = n
Surface area 4048472429388326400
Volume 5.5425536223056E+26
Space diagonal 1422756554.9644

Equilateral Triangle

Length = n
Perimeter 2464286640
Area 2.9217333086427E+17
Altitude 711378277.4822

Triangular Pyramid

Length = n
Surface area 2.9217333086427E+17
Volume 6.5319620857039E+25
Height 387225287.54031