81128973 (number)

81128973 is an odd 8-digits composite number following 81128972 and preceding 81128974. In scientific notation, it is written as 8.1128973 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 53870000 positive integers (up to 81128973) that are relatively prime to 81128973.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1128973 × 10^7
Engineering notation 8.1128973 × 10^6

Prime Factorization of 81128973

Prime Factorization 3 × 251 × 107741

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81128973
Product of the distinct prime numbers

The prime factorization of 81128973 is 3 × 251 × 107741. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81128973)

Multiplication

n×y
n×2 162257946
n×3 243386919
n×4 324515892
n×5 405644865

Division

n÷y
n÷2 40564486.5
n÷3 27042991
n÷3 20282243.25
n÷5 16225794.6

Exponentiation

ny
n2 6581910260034729
n3 5.3398361977478E+23
n4 4.332154267115E+31
n5 3.5146322656861E+39

Nth Root

y√n
2√n 9007.1623167344
3√n 432.90439283916
4√n 94.906071021481
5√n 38.179935965376

Divisors of 81128973

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81128972
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81128973 can be divided by 8 positive divisors. The sum of these divisors (counting 81128973) is 1, the average is 0.125.

Base conversion 81128973

Base System Value
2 Binary 100110101011110111000001101
3 Ternary 12122122210000210
4 Quaternary 10311132320031
5 Quinary 131232111343
6 Senary 12014513033
8 Octal 465367015
10 Decimal 81128973
12 Duodecimal 23205779
16 Hexadecimal 4d5ee0d
20 Vigesimal 157128d
36 Base36 1cavil

Cryptographic Hash Functions

md5 695291f88b84b6f493a12e7c7cabaefe
sha1 cf6876d81f850b91411be05fe3b17440e7cba007
sha256 58e5ae317b480df7a75a041d279ca16829fc0a923fcae09490211095b58d6070
sha512 7ad6d0fe77c3008bda0c342a22c2662813233294f802ddb2b7b6da6305028ca8a939ec6aa823ca661545308c8e003076a520d67bbe4d323b5a05100c0530a6b8
ripemd-160 2bf6d3243ebd1a7dd8ca18a5ad325abc7a1cdaaa

81128973 as geometric shapes

Circle

Radius = n
Diameter 162257946
Circumference 509748371.14017
Area 2.0677680919512E+16

Sphere

Radius = n
Volume 2.236745356029E+24
Surface area 8.271072367805E+16
Circumference 509748371.14017

Square

Length = n
Perimeter 324515892
Area 6581910260034729
Diagonal 114733693.918

Cube

Length = n
Surface area 39491461560208374
Volume 5.3398361977478E+23
Space diagonal 140519503.20188

Equilateral Triangle

Length = n
Perimeter 243386919
Area 2.8500507453098E+15
Altitude 70259751.600942

Triangular Pyramid

Length = n
Surface area 2.8500507453098E+15
Volume 6.2930573097548E+22
Height 38244564.639334