81008020 (number)

81008020 is an even 8-digits composite number following 81008019 and preceding 81008021. In scientific notation, it is written as 8.1008020 × 10^7. The sum of its digits is 19. It has a total of 6 prime factors and 48 positive divisors. There are 29635200 positive integers (up to 81008020) that are relatively prime to 81008020.

Interesting facts

Basic properties

Name

Name eighty-one million eight thousand twenty

Notation

Scientific notation 8.1008020 × 10^7
Engineering notation 8.1008020 × 10^6

Prime Factorization of 81008020

Prime Factorization 2 × 2 × 5 × 19 × 29 × 7351

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40504010
Product of the distinct prime numbers

The prime factorization of 81008020 is 2 × 2 × 5 × 19 × 29 × 7351. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 4, 62, 23, 202, 43, 768, 6014, 5992, 9803, 731012, 311581, 7626358, 8236330, 92785145, 59882090, 645557451, 382129470, 6833765608, 4264605280

Basic calculations (n = 81008020)

Multiplication

n×y
n×2 162016040
n×3 243024060
n×4 324032080
n×5 405040100

Division

n÷y
n÷2 40504010
n÷3 27002673.333333
n÷3 20252005
n÷5 16201604

Exponentiation

ny
n2 6562299304320400
n3 5.3159887329037E+23
n4 4.3063772159484E+31
n5 3.4885109163709E+39

Nth Root

y√n
2√n 9000.4455445272
3√n 432.68915067225
4√n 94.870678001832
5√n 38.168544882715

Divisors of 81008020

1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 2204, 2755, 5510, 7351, 11020, 14702, 29404, 36755, 73510, 139669, 147020, 213179, 279338, 426358, 558676, 698345, 852716, 1065895, 1396690, 2131790, 2793380, 4050401, 4263580, 8100802, 16201604, 20252005, 40504010, 81008020

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81008019
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81008020 can be divided by 48 positive divisors. The sum of these divisors (counting 81008020) is 1, the average is 0.020833333333333.

Base conversion 81008020

Base System Value
2 Binary 100110101000001010110010100
3 Ternary 12122102122010001
4 Quaternary 10311001112110
5 Quinary 131214224040
6 Senary 12012141044
8 Octal 465012624
10 Decimal 81008020
12 Duodecimal 23167784
16 Hexadecimal 4d41594
20 Vigesimal 1566010
36 Base36 1c8a6s

Cryptographic Hash Functions

md5 8f66928ca1b21669b6d2740a524f3402
sha1 6f3a36c439dc8a042c17b870cf256e7ceda621de
sha256 f03b11290844d9aad5a2f007e97f188c3a6a86a05520ddb2d56ac6a604e2c1d6
sha512 551f54473bf928773fbe7521af50cc1365786df84dd9b1ab8476a2cc4006cbd48fc0664d2da5e5265717b1fb500969838a223f4dadf45cf50fd27c73ac008e87
ripemd-160 8afed9fb5e77def4fec4a359f6e38e7653d93bea

81008020 as geometric shapes

Circle

Radius = n
Diameter 162016040
Circumference 508988401.02771
Area 2.061607128511E+16

Sphere

Radius = n
Volume 2.2267561533142E+24
Surface area 8.2464285140442E+16
Circumference 508988401.02771

Square

Length = n
Perimeter 324032080
Area 6562299304320400
Diagonal 114562640.54499

Cube

Length = n
Surface area 39373795825922400
Volume 5.3159887329037E+23
Space diagonal 140310006.46056

Equilateral Triangle

Length = n
Perimeter 243024060
Area 2.8415589523892E+15
Altitude 70155003.230278

Triangular Pyramid

Length = n
Surface area 2.8415589523892E+15
Volume 6.2649528029125E+22
Height 38187546.84833