81129344 (number)

81129344 is an even 8-digits composite number following 81129343 and preceding 81129345. In scientific notation, it is written as 8.1129344 × 10^7. The sum of its digits is 32. It has a total of 8 prime factors and 16 positive divisors. There are 40564608 positive integers (up to 81129344) that are relatively prime to 81129344.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-nine thousand three hundred forty-four

Notation

Scientific notation 8.1129344 × 10^7
Engineering notation 8.1129344 × 10^6

Prime Factorization of 81129344

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 633823

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 1267646
Product of the distinct prime numbers

The prime factorization of 81129344 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 633823. Since it has a total of 8 prime factors.

Most popular turbo-numbers

4, 7, 43, 54, 736, 770, 7528, 8367, 70548, 39810, 435745, 891211, 1748972, 7802314, 44191349, 48437765, 622829134, 519451983, 6369925519, 9122841226

Basic calculations (n = 81129344)

Multiplication

n×y
n×2 162258688
n×3 243388032
n×4 324517376
n×5 405646720

Division

n÷y
n÷2 40564672
n÷3 27043114.666667
n÷3 20282336
n÷5 16225868.8

Exponentiation

ny
n2 6581970457870336
n3 5.339909454744E+23
n4 4.3322335108278E+31
n5 3.5147126278827E+39

Nth Root

y√n
2√n 9007.1829114324
3√n 432.90505272379
4√n 94.906179521844
5√n 38.179970884419

Divisors of 81129344

1, 2, 4, 8, 16, 32, 64, 128, 633823, 1267646, 2535292, 5070584, 10141168, 20282336, 40564672, 81129344

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 -81129343
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 81129344 can be divided by 16 positive divisors. The sum of these divisors (counting 81129344) is 1, the average is 0.0625.

Base conversion 81129344

Base System Value
2 Binary 100110101011110111110000000
3 Ternary 12122122210112112
4 Quaternary 10311132332000
5 Quinary 131232114334
6 Senary 12014514452
8 Octal 465367600
10 Decimal 81129344
12 Duodecimal 23205a28
16 Hexadecimal 4d5ef80
20 Vigesimal 1571374
36 Base36 1cavsw

Cryptographic Hash Functions

md5 f7a8c002497772de3314c754de37149a
sha1 88d4c59cefa558dabc2f4f74282f73165ebcd2ce
sha256 14dc50e5876f14babfe161a8faece43b1cd62bc3a9d93ae6f339bd65209d3f94
sha512 3a8a2c80a0a171f17200479ea02b590a9746acdcf7f587771f2bc1d93644d402d5f882ce1e50e2ed42f36fcb9414005e1609887d9b3bd34a24efb3d0758b7898
ripemd-160 d786aeb7fe50e25489f2d9a17ce7482191554b1d

81129344 as geometric shapes

Circle

Radius = n
Diameter 162258688
Circumference 509750702.20192
Area 2.067787003659E+16

Sphere

Radius = n
Volume 2.2367760418478E+24
Surface area 8.2711480146362E+16
Circumference 509750702.20192

Square

Length = n
Perimeter 324517376
Area 6581970457870336
Diagonal 114734218.59123

Cube

Length = n
Surface area 39491822747222016
Volume 5.339909454744E+23
Space diagonal 140520145.79273

Equilateral Triangle

Length = n
Perimeter 243388032
Area 2.8500768117372E+15
Altitude 70260072.896367

Triangular Pyramid

Length = n
Surface area 2.8500768117372E+15
Volume 6.2931436439527E+22
Height 38244739.530411