81738368 (number)

81738368 is an even 8-digits composite number following 81738367 and preceding 81738369. In scientific notation, it is written as 8.1738368 × 10^7. The sum of its digits is 44. It has a total of 8 prime factors and 16 positive divisors. There are 40869120 positive integers (up to 81738368) that are relatively prime to 81738368.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-eight thousand three hundred sixty-eight

Notation

Scientific notation 8.1738368 × 10^7
Engineering notation 8.1738368 × 10^6

Prime Factorization of 81738368

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 638581

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 1277162
Product of the distinct prime numbers

The prime factorization of 81738368 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 638581. Since it has a total of 8 prime factors.

Most popular turbo-numbers

9, 5, 77, 67, 473, 536, 6572, 5763, 44197, 7293, 550882, 118250, 2220518, 5274242, 66441972, 14734828, 132254374, 781663381, 4312146011, 3088067318

Basic calculations (n = 81738368)

Multiplication

n×y
n×2 163476736
n×3 245215104
n×4 326953472
n×5 408691840

Division

n÷y
n÷2 40869184
n÷3 27246122.666667
n÷3 20434592
n÷5 16347673.6

Exponentiation

ny
n2 6681160803303424
n3 5.4610718040759E+23
n4 4.4637909679598E+31
n5 3.6486298881417E+39

Nth Root

y√n
2√n 9040.9273860595
3√n 433.98560125519
4√n 95.083791395061
5√n 38.237121624763

Divisors of 81738368

1, 2, 4, 8, 16, 32, 64, 128, 638581, 1277162, 2554324, 5108648, 10217296, 20434592, 40869184, 81738368

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 -81738367
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 81738368 can be divided by 16 positive divisors. The sum of these divisors (counting 81738368) is 1, the average is 0.0625.

Base conversion 81738368

Base System Value
2 Binary 100110111110011101010000000
3 Ternary 12200210201221222
4 Quaternary 10313303222000
5 Quinary 131411111433
6 Senary 12035534212
8 Octal 467635200
10 Decimal 81738368
12 Duodecimal 2345a368
16 Hexadecimal 4df3a80
20 Vigesimal 15ah5i8
36 Base36 1cnxq8

Cryptographic Hash Functions

md5 9aac62c0edfc3bcb8eee497c1b9f5667
sha1 52e71fde528296a30c87a908c5fb2f35177b6701
sha256 e0f4c01aa7ee52bf5d5b14b2a543277d622f68684a687e861ab2bc677afb0604
sha512 e6cd593a961b52019514b3b5ffea2ab2d4f02c3c0df1f56c7b79f52e259d05586f548e87b69a65d139f823d7ba312cd4eea91ede36c83289b3fe1c20bfed1e50
ripemd-160 9be2cf5d143d2584b6c082545beba8f996103c25

81738368 as geometric shapes

Circle

Radius = n
Diameter 163476736
Circumference 513577312.85044
Area 2.098948569711E+16

Sphere

Radius = n
Volume 2.2875284080548E+24
Surface area 8.395794278844E+16
Circumference 513577312.85044

Square

Length = n
Perimeter 326953472
Area 6681160803303424
Diagonal 115595508.59184

Cube

Length = n
Surface area 40086964819820544
Volume 5.4610718040759E+23
Space diagonal 141575006.30376

Equilateral Triangle

Length = n
Perimeter 245215104
Area 2.8930274912148E+15
Altitude 70787503.151881

Triangular Pyramid

Length = n
Surface area 2.8930274912148E+15
Volume 6.4359348420145E+22
Height 38531836.197281