81128976 (number)

81128976 is an even 8-digits composite number following 81128975 and preceding 81128977. In scientific notation, it is written as 8.1128976 × 10^7. The sum of its digits is 42. It has a total of 6 prime factors and 20 positive divisors. There are 27042976 positive integers (up to 81128976) that are relatively prime to 81128976.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-eight thousand nine hundred seventy-six

Notation

Scientific notation 8.1128976 × 10^7
Engineering notation 8.1128976 × 10^6

Prime Factorization of 81128976

Prime Factorization 2 × 2 × 2 × 2 × 3 × 1690187

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10141122
Product of the distinct prime numbers

The prime factorization of 81128976 is 2 × 2 × 2 × 2 × 3 × 1690187. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 6, 18, 62, 321, 505, 4987, 1574, 56821, 96023, 748595, 70574, 4044818, 9625536, 74664855, 79412063, 383255317, 174592612, 7713203881, 5937251939

Basic calculations (n = 81128976)

Multiplication

n×y
n×2 162257952
n×3 243386928
n×4 324515904
n×5 405644880

Division

n÷y
n÷2 40564488
n÷3 27042992
n÷3 20282244
n÷5 16225795.2

Exponentiation

ny
n2 6581910746808576
n3 5.3398367901198E+23
n4 4.3321549078954E+31
n5 3.5146329155093E+39

Nth Root

y√n
2√n 9007.1624832685
3√n 432.90439817517
4√n 94.906071898844
5√n 38.179936247741

Divisors of 81128976

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1690187, 3380374, 5070561, 6760748, 10141122, 13521496, 20282244, 27042992, 40564488, 81128976

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 -81128975
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 81128976 can be divided by 20 positive divisors. The sum of these divisors (counting 81128976) is 1, the average is 0.05.

Base conversion 81128976

Base System Value
2 Binary 100110101011110111000010000
3 Ternary 12122122210000220
4 Quaternary 10311132320100
5 Quinary 131232111401
6 Senary 12014513040
8 Octal 465367020
10 Decimal 81128976
12 Duodecimal 23205780
16 Hexadecimal 4d5ee10
20 Vigesimal 157128g
36 Base36 1cavio

Cryptographic Hash Functions

md5 3ab8f589baa3e0879cc8cffd4e97a8f4
sha1 0ea7ce96a27e36e8998152f237378e31dba6293b
sha256 296d9107b1e39c70092a1a26d1306bbe24daa3cfc9427e46ca456cfa9b3d2129
sha512 29584d8067f6be52532bd638f56ca4f768d62ed8623a2ff2380a11c554658ff6703faa18bad3fbef15fbb8f564a9f5eea1de7e6ed72dbf4e3ea56c093e1bdf1c
ripemd-160 286c731a17b717a7299b6982d9f8f38aa882f917

81128976 as geometric shapes

Circle

Radius = n
Diameter 162257952
Circumference 509748389.98973
Area 2.0677682448758E+16

Sphere

Radius = n
Volume 2.2367456041612E+24
Surface area 8.271072979503E+16
Circumference 509748389.98973

Square

Length = n
Perimeter 324515904
Area 6581910746808576
Diagonal 114733698.16064

Cube

Length = n
Surface area 39491464480851456
Volume 5.3398367901198E+23
Space diagonal 140519508.39804

Equilateral Triangle

Length = n
Perimeter 243386928
Area 2.850050956089E+15
Altitude 70259754.199018

Triangular Pyramid

Length = n
Surface area 2.850050956089E+15
Volume 6.2930580078718E+22
Height 38244566.053547