81728295 (number)

81728295 is an odd 8-digits composite number following 81728294 and preceding 81728296. In scientific notation, it is written as 8.1728295 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 39625760 positive integers (up to 81728295) that are relatively prime to 81728295.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-eight thousand two hundred ninety-five

Notation

Scientific notation 8.1728295 × 10^7
Engineering notation 8.1728295 × 10^6

Prime Factorization of 81728295

Prime Factorization 3 × 5 × 11 × 495323

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81728295
Product of the distinct prime numbers

The prime factorization of 81728295 is 3 × 5 × 11 × 495323. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81728295)

Multiplication

n×y
n×2 163456590
n×3 245184885
n×4 326913180
n×5 408641475

Division

n÷y
n÷2 40864147.5
n÷3 27242765
n÷3 20432073.75
n÷5 16345659

Exponentiation

ny
n2 6679514203607025
n3 5.4590530728909E+23
n4 4.4615909996188E+31
n5 3.6463822538619E+39

Nth Root

y√n
2√n 9040.3702910887
3√n 433.9677731668
4√n 95.080861854996
5√n 38.236179150566

Divisors of 81728295

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 -81728294
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 81728295 can be divided by 16 positive divisors. The sum of these divisors (counting 81728295) is 1, the average is 0.0625.

Base conversion 81728295

Base System Value
2 Binary 100110111110001001100100111
3 Ternary 12200210020010220
4 Quaternary 10313301030213
5 Quinary 131410301140
6 Senary 12035415423
8 Octal 467611447
10 Decimal 81728295
12 Duodecimal 23454573
16 Hexadecimal 4df1327
20 Vigesimal 15ag0ef
36 Base36 1cnpyf

Cryptographic Hash Functions

md5 6b7b5309712cde33a2da0247eea2836b
sha1 65625c955300f08ebf7fa6bfbb2884f781a51f2d
sha256 9e48dd9e7b137e998b7a1b2f3d3d9b83d9b3ef1b058465d98d8a4a9dd3dd9c3e
sha512 1f100d23353eae95e41e6d7a8d3f00e8c666c5febb6ec1d0da9d7b8b201b5dbdf8f49d653c823e2c9bbda9f9d74b5c12fb7b8f32713f1889b35311bdaa2a0395
ripemd-160 dfa57bc0a5558a42380e0525a339792d160fb424

81728295 as geometric shapes

Circle

Radius = n
Diameter 163456590
Circumference 513514022.32484
Area 2.0984312751601E+16

Sphere

Radius = n
Volume 2.2866828039134E+24
Surface area 8.3937251006402E+16
Circumference 513514022.32484

Square

Length = n
Perimeter 326913180
Area 6679514203607025
Diagonal 115581263.21863

Cube

Length = n
Surface area 40077085221642150
Volume 5.4590530728909E+23
Space diagonal 141557559.35598

Equilateral Triangle

Length = n
Perimeter 245184885
Area 2.8923144926313E+15
Altitude 70778779.677989

Triangular Pyramid

Length = n
Surface area 2.8923144926313E+15
Volume 6.4335557444973E+22
Height 38527087.739543