72181868 (number)

72181868 is an even 8-digits composite number following 72181867 and preceding 72181869. In scientific notation, it is written as 7.2181868 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors. There are 32809920 positive integers (up to 72181868) that are relatively prime to 72181868.

Interesting facts

Basic properties

Name

Name seventy-two million one hundred eighty-one thousand eight hundred sixty-eight

Notation

Scientific notation 7.2181868 × 10^7
Engineering notation 7.2181868 × 10^6

Prime Factorization of 72181868

Prime Factorization 2 × 2 × 11 × 1640497

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 36090934
Product of the distinct prime numbers

The prime factorization of 72181868 is 2 × 2 × 11 × 1640497. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 72181868)

Multiplication

n×y
n×2 144363736
n×3 216545604
n×4 288727472
n×5 360909340

Division

n÷y
n÷2 36090934
n÷3 24060622.666667
n÷3 18045467
n÷5 14436373.6

Exponentiation

ny
n2 5210222067969424
n3 3.7608356156086E+23
n4 2.7146413997556E+31
n5 1.9594788718449E+39

Nth Root

y√n
2√n 8495.9912900144
3√n 416.36674850741
4√n 92.173701726764
5√n 37.298006766177

Divisors of 72181868

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -72181867
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 72181868 can be divided by 12 positive divisors. The sum of these divisors (counting 72181868) is 1, the average is 0.083333333333333.

Base conversion 72181868

Base System Value
2 Binary 100010011010110100001101100
3 Ternary 12000211012220112
4 Quaternary 10103112201230
5 Quinary 121434304433
6 Senary 11055035152
8 Octal 423264154
10 Decimal 72181868
12 Duodecimal 2020bab8
16 Hexadecimal 44d686c
20 Vigesimal 12b2ed8
36 Base36 16z3vw

Cryptographic Hash Functions

md5 992a5a9a4ec29858684c17666c540e25
sha1 baaca17412bec2d63f4a25b4c1031401d28f5fea
sha256 41b1c32c806052feea788604268f9600f92c45c875499b15ed5bb6431d4251e1
sha512 1e9e381010b950febffaa637157cc2bcdb70b44c7ed78e7fc0cc8d646e7284cc2115ff74af45bc0ef0ff0e6b101161513e03933413deb95fa627f1005b7e886a
ripemd-160 88081418d3b26303fabcac01fc4161ad4ca40e26

72181868 as geometric shapes

Circle

Radius = n
Diameter 144363736
Circumference 453532052.46238
Area 1.6368395372304E+16

Sphere

Radius = n
Volume 1.5753351388473E+24
Surface area 6.5473581489217E+16
Circumference 453532052.46238

Square

Length = n
Perimeter 288727472
Area 5210222067969424
Diagonal 102080576.68302

Cube

Length = n
Surface area 31261332407816544
Volume 3.7608356156086E+23
Space diagonal 125022662.76123

Equilateral Triangle

Length = n
Perimeter 216545604
Area 2.2560923351099E+15
Altitude 62511331.380615

Triangular Pyramid

Length = n
Surface area 2.2560923351099E+15
Volume 4.4321872778745E+22
Height 34026858.894342