81729306 (number)

81729306 is an even 8-digits composite number following 81729305 and preceding 81729307. In scientific notation, it is written as 8.1729306 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 27243096 positive integers (up to 81729306) that are relatively prime to 81729306.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-nine thousand three hundred six

Notation

Scientific notation 8.1729306 × 10^7
Engineering notation 8.1729306 × 10^6

Prime Factorization of 81729306

Prime Factorization 2 × 9 × 4540517

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81729306
Product of the distinct prime numbers

The prime factorization of 81729306 is 2 × 9 × 4540517. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81729306)

Multiplication

n×y
n×2 163458612
n×3 245187918
n×4 326917224
n×5 408646530

Division

n÷y
n÷2 40864653
n÷3 27243102
n÷3 20432326.5
n÷5 16345861.2

Exponentiation

ny
n2 6679679459241636
n3 5.4592556650627E+23
n4 4.4618117678215E+31
n5 3.6466077928668E+39

Nth Root

y√n
2√n 9040.426206767
3√n 433.96956259036
4√n 95.081155897302
5√n 38.236273748369

Divisors of 81729306

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 -81729305
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 81729306 can be divided by 8 positive divisors. The sum of these divisors (counting 81729306) is 1, the average is 0.125.

Base conversion 81729306

Base System Value
2 Binary 100110111110001011100011010
3 Ternary 12200210021112100
4 Quaternary 10313301130122
5 Quinary 131410314211
6 Senary 12035424230
8 Octal 467613432
10 Decimal 81729306
12 Duodecimal 23455076
16 Hexadecimal 4df171a
20 Vigesimal 15ag356
36 Base36 1cnqqi

Cryptographic Hash Functions

md5 edfbd2b2fe6daab16027339d2a86f7d2
sha1 4a6c53c3f745e7b5ae9a319bb12f64d9c5994804
sha256 50bd54e13f6fb77bcde4d1771133a96f4f249536bed85f84a62c3a3947704685
sha512 25a6ef7e62cc6fd8bd59968bfaeda29c0667e17a819856022d1d8fe86bd10d82de2381bf4496444698a66a93481a6075df6a03e0f0f9f6b7fe63f21ab91466eb
ripemd-160 d6461ae8e53bdefe886ab074051d1343c382e577

81729306 as geometric shapes

Circle

Radius = n
Diameter 163458612
Circumference 513520374.62518
Area 2.0984831917488E+16

Sphere

Radius = n
Volume 2.2867676655239E+24
Surface area 8.3939327669953E+16
Circumference 513520374.62518

Square

Length = n
Perimeter 326917224
Area 6679679459241636
Diagonal 115582692.98854

Cube

Length = n
Surface area 40078076755449816
Volume 5.4592556650627E+23
Space diagonal 141559310.45934

Equilateral Triangle

Length = n
Perimeter 245187918
Area 2.8923860504202E+15
Altitude 70779655.229672

Triangular Pyramid

Length = n
Surface area 2.8923860504202E+15
Volume 6.4337945016616E+22
Height 38527564.329514