81420008 (number)

81420008 is an even 8-digits composite number following 81420007 and preceding 81420009. In scientific notation, it is written as 8.1420008 × 10^7. The sum of its digits is 23. It has a total of 5 prime factors and 16 positive divisors. There are 40102128 positive integers (up to 81420008) that are relatively prime to 81420008.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred twenty thousand eight

Notation

Scientific notation 8.1420008 × 10^7
Engineering notation 8.1420008 × 10^6

Prime Factorization of 81420008

Prime Factorization 2 × 2 × 2 × 67 × 151903

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20355002
Product of the distinct prime numbers

The prime factorization of 81420008 is 2 × 2 × 2 × 67 × 151903. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 4, 17, 50, 686, 816, 7305, 4473, 58220, 66792, 639237, 488930, 2949077, 8141935, 28064013, 51162985, 987306385, 701631035, 4528477502, 1445832424

Basic calculations (n = 81420008)

Multiplication

n×y
n×2 162840016
n×3 244260024
n×4 325680032
n×5 407100040

Division

n÷y
n÷2 40710004
n÷3 27140002.666667
n÷3 20355002
n÷5 16284001.6

Exponentiation

ny
n2 6629217702720064
n3 5.3975095838921E+23
n4 4.3946527350057E+31
n5 3.5781266084139E+39

Nth Root

y√n
2√n 9023.3036078811
3√n 433.42142955768
4√n 94.99107120083
5√n 38.207289417619

Divisors of 81420008

1, 2, 4, 8, 67, 134, 268, 536, 151903, 303806, 607612, 1215224, 10177501, 20355002, 40710004, 81420008

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81420007
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81420008 can be divided by 16 positive divisors. The sum of these divisors (counting 81420008) is 1, the average is 0.0625.

Base conversion 81420008

Base System Value
2 Binary 100110110100101111011101000
3 Ternary 12200012120020212
4 Quaternary 10312211323220
5 Quinary 131320420013
6 Senary 12025040252
8 Octal 466457350
10 Decimal 81420008
12 Duodecimal 23326088
16 Hexadecimal 4da5ee8
20 Vigesimal 158ha08
36 Base36 1ch42w

Cryptographic Hash Functions

md5 835fd740c649da4871c8c5f050cfd3d9
sha1 0379c52f70c1a1a4b3b7d4b389adda8efaa12112
sha256 a17aaeba824ac5fe2506e73192337385f13b0166a1f7dcead482b8c791d3eb00
sha512 de0041f8a36077a61a1e33dac863fcf3081177fbccf7ab6fa8aa99056a432ee4735365cef3c22919e5fc1549ed9441241f719d9385be9f9081601b84f2544bbf
ripemd-160 0d959202d006b56359f2e6ae77dd5222dbb054e8

81420008 as geometric shapes

Circle

Radius = n
Diameter 162840016
Circumference 511576997.97604
Area 2.0826301633913E+16

Sphere

Radius = n
Volume 2.2609035275248E+24
Surface area 8.3305206535651E+16
Circumference 511576997.97604

Square

Length = n
Perimeter 325680032
Area 6629217702720064
Diagonal 115145279.56213

Cube

Length = n
Surface area 39775306216320384
Volume 5.3975095838921E+23
Space diagonal 141023590.60866

Equilateral Triangle

Length = n
Perimeter 244260024
Area 2.8705354688865E+15
Altitude 70511795.304332

Triangular Pyramid

Length = n
Surface area 2.8705354688865E+15
Volume 6.3610260471491E+22
Height 38381759.854042