81738186 (number)

81738186 is an even 8-digits composite number following 81738185 and preceding 81738187. In scientific notation, it is written as 8.1738186 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 27246060 positive integers (up to 81738186) that are relatively prime to 81738186.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-eight thousand one hundred eighty-six

Notation

Scientific notation 8.1738186 × 10^7
Engineering notation 8.1738186 × 10^6

Prime Factorization of 81738186

Prime Factorization 2 × 3 × 13623031

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81738186
Product of the distinct prime numbers

The prime factorization of 81738186 is 2 × 3 × 13623031. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81738186)

Multiplication

n×y
n×2 163476372
n×3 245214558
n×4 326952744
n×5 408690930

Division

n÷y
n÷2 40869093
n÷3 27246062
n÷3 20434546.5
n÷5 16347637.2

Exponentiation

ny
n2 6681131050570596
n3 5.4610353250191E+23
n4 4.4637512114899E+31
n5 3.6485892678248E+39

Nth Root

y√n
2√n 9040.9173207148
3√n 433.98527914845
4√n 95.083738466232
5√n 38.237104596866

Divisors of 81738186

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 -81738185
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 81738186 can be divided by 8 positive divisors. The sum of these divisors (counting 81738186) is 1, the average is 0.125.

Base conversion 81738186

Base System Value
2 Binary 100110111110011100111001010
3 Ternary 12200210201201020
4 Quaternary 10313303213022
5 Quinary 131411110221
6 Senary 12035533310
8 Octal 467634712
10 Decimal 81738186
12 Duodecimal 2345a236
16 Hexadecimal 4df39ca
20 Vigesimal 15ah596
36 Base36 1cnxl6

Cryptographic Hash Functions

md5 b855d739532a3071c41e17f49669f888
sha1 5f3235ea56dc65238ab40f6ccaef26424c1c1a66
sha256 6d1f9a457097a5084b7993d82c4ed08c586adb0d7df10d1f2455ee9f9f5a6e52
sha512 9a66f91d3923285f70b444fdea247f365e3ba1317f6325a5149f915d71276097cb2f901cdecfda5c073fca58a61c72845028b0f3b6508b6c4ba22391d148efd6
ripemd-160 5c389203732778b9a2f0335459bf43e8c1fa7ed5

81738186 as geometric shapes

Circle

Radius = n
Diameter 163476372
Circumference 513576169.31071
Area 2.0989392226143E+16

Sphere

Radius = n
Volume 2.2875131277433E+24
Surface area 8.3957568904573E+16
Circumference 513576169.31071

Square

Length = n
Perimeter 326952744
Area 6681131050570596
Diagonal 115595251.20497

Cube

Length = n
Surface area 40086786303423576
Volume 5.4610353250191E+23
Space diagonal 141574691.07052

Equilateral Triangle

Length = n
Perimeter 245214558
Area 2.8930146079036E+15
Altitude 70787345.535258

Triangular Pyramid

Length = n
Surface area 2.8930146079036E+15
Volume 6.4358918510339E+22
Height 38531750.401658