81972783 (number)

81972783 is an odd 8-digits composite number following 81972782 and preceding 81972784. In scientific notation, it is written as 8.1972783 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 51771960 positive integers (up to 81972783) that are relatively prime to 81972783.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred seventy-two thousand seven hundred eighty-three

Notation

Scientific notation 8.1972783 × 10^7
Engineering notation 8.1972783 × 10^6

Prime Factorization of 81972783

Prime Factorization 27 × 19 × 159791

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81972783
Product of the distinct prime numbers

The prime factorization of 81972783 is 27 × 19 × 159791. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81972783)

Multiplication

n×y
n×2 163945566
n×3 245918349
n×4 327891132
n×5 409863915

Division

n÷y
n÷2 40986391.5
n÷3 27324261
n÷3 20493195.75
n÷5 16394556.6

Exponentiation

ny
n2 6719537152765089
n3 5.5081916088405E+23
n4 4.515217954739E+31
n5 3.7012498160153E+39

Nth Root

y√n
2√n 9053.8822059932
3√n 434.40007669178
4√n 95.151890186129
5√n 38.25902832647

Divisors of 81972783

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 -81972782
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 81972783 can be divided by 8 positive divisors. The sum of these divisors (counting 81972783) is 1, the average is 0.125.

Base conversion 81972783

Base System Value
2 Binary 100111000101100111000101111
3 Ternary 12201020122112000
4 Quaternary 10320230320233
5 Quinary 131441112113
6 Senary 12044543343
8 Octal 470547057
10 Decimal 81972783
12 Duodecimal 23551b53
16 Hexadecimal 4e2ce2f
20 Vigesimal 15c6bj3
36 Base36 1csylr

Cryptographic Hash Functions

md5 3bfcde80ceda356a0f2a7584a7aed7f0
sha1 d60f1d860602a307a9210d433fde7f1fb16ddc3e
sha256 4784bb5f6dcbf2543d35d3a992b53f5fe0cbc18f9b016ff01aea08794b98e8c9
sha512 604bc06b4af4800ae56b47f9fb57fe7a84fd1923ccf2e6809974bc5e6f7d61b27169e096873a38b856dc36dbabd2567244eac4c1af635415f94f642479375839
ripemd-160 9b8d4993af159ec62000e3c412e6bfe4df0b1efb

81972783 as geometric shapes

Circle

Radius = n
Diameter 163945566
Circumference 515050185.73422
Area 2.111004855465E+16

Sphere

Radius = n
Volume 2.3072659057198E+24
Surface area 8.4440194218602E+16
Circumference 515050185.73422

Square

Length = n
Perimeter 327891132
Area 6719537152765089
Diagonal 115927021.46407

Cube

Length = n
Surface area 40317222916590534
Volume 5.5081916088405E+23
Space diagonal 141981024.99382

Equilateral Triangle

Length = n
Perimeter 245918349
Area 2.909644937984E+15
Altitude 70990512.496909

Triangular Pyramid

Length = n
Surface area 2.909644937984E+15
Volume 6.4914660644766E+22
Height 38642340.488022