81728162 (number)

81728162 is an even 8-digits composite number following 81728161 and preceding 81728163. In scientific notation, it is written as 8.1728162 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 40680612 positive integers (up to 81728162) that are relatively prime to 81728162.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-eight thousand one hundred sixty-two

Notation

Scientific notation 8.1728162 × 10^7
Engineering notation 8.1728162 × 10^6

Prime Factorization of 81728162

Prime Factorization 2 × 223 × 183247

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81728162
Product of the distinct prime numbers

The prime factorization of 81728162 is 2 × 223 × 183247. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 2, 25, 25, 218, 732, 8989, 6651, 65876, 92559, 564723, 868463, 5494392, 796562, 40456653, 59197907, 151550103, 938045801, 201112750, 1269612568

Basic calculations (n = 81728162)

Multiplication

n×y
n×2 163456324
n×3 245184486
n×4 326912648
n×5 408640810

Division

n÷y
n÷2 40864081
n÷3 27242720.666667
n÷3 20432040.5
n÷5 16345632.4

Exponentiation

ny
n2 6679492463898244
n3 5.4590264216725E+23
n4 4.4615619575273E+31
n5 3.6463525843783E+39

Nth Root

y√n
2√n 9040.3629351924
3√n 433.96753776181
4√n 95.080823172669
5√n 38.236166705879

Divisors of 81728162

1, 2, 223, 446, 183247, 366494, 40864081, 81728162

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 -81728161
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 81728162 can be divided by 8 positive divisors. The sum of these divisors (counting 81728162) is 1, the average is 0.125.

Base conversion 81728162

Base System Value
2 Binary 100110111110001001010100010
3 Ternary 12200210012221222
4 Quaternary 10313301022202
5 Quinary 131410300122
6 Senary 12035415042
8 Octal 467611242
10 Decimal 81728162
12 Duodecimal 23454482
16 Hexadecimal 4df12a2
20 Vigesimal 15ag082
36 Base36 1cnpuq

Cryptographic Hash Functions

md5 d30f06e7741c279d45ae274f8e1fbbd7
sha1 2d3f5f644741e112f21df65f8568ea082964c525
sha256 9796ec904453a5a5d0c15d34e49931dc93ecd9a654cd57a520eaae7eb743e848
sha512 86ae15e2433685fee035ba8c343abb87e18fc9ab658249bbece9f8702a0adf892542b29eb9afdc2639d5dbef3941eb46651f098a073cca5996289db6a54f686c
ripemd-160 ab593271ca520bdbe6f8eb577761abdfc06e0b82

81728162 as geometric shapes

Circle

Radius = n
Diameter 163456324
Circumference 513513186.66119
Area 2.0984244454291E+16

Sphere

Radius = n
Volume 2.2866716402772E+24
Surface area 8.3936977817164E+16
Circumference 513513186.66119

Square

Length = n
Perimeter 326912648
Area 6679492463898244
Diagonal 115581075.12823

Cube

Length = n
Surface area 40076954783389464
Volume 5.4590264216725E+23
Space diagonal 141557328.99322

Equilateral Triangle

Length = n
Perimeter 245184486
Area 2.8923050790613E+15
Altitude 70778664.49661

Triangular Pyramid

Length = n
Surface area 2.8923050790613E+15
Volume 6.4335243357353E+22
Height 38527025.042742