81585468 (number)

81585468 is an even 8-digits composite number following 81585467 and preceding 81585469. In scientific notation, it is written as 8.1585468 × 10^7. The sum of its digits is 45. It has a total of 6 prime factors and 48 positive divisors. There are 24820992 positive integers (up to 81585468) that are relatively prime to 81585468.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred eighty-five thousand four hundred sixty-eight

Notation

Scientific notation 8.1585468 × 10^7
Engineering notation 8.1585468 × 10^6

Prime Factorization of 81585468

Prime Factorization 2 × 2 × 81 × 19 × 29 × 457

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40792734
Product of the distinct prime numbers

The prime factorization of 81585468 is 2 × 2 × 81 × 19 × 29 × 457. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81585468)

Multiplication

n×y
n×2 163170936
n×3 244756404
n×4 326341872
n×5 407927340

Division

n÷y
n÷2 40792734
n÷3 27195156
n÷3 20396367
n÷5 16317093.6

Exponentiation

ny
n2 6656188588779024
n3 5.430482611118E+23
n4 4.4304846529392E+31
n5 3.6146316387686E+39

Nth Root

y√n
2√n 9032.4674369742
3√n 433.7148274901
4√n 95.03929417338
5√n 38.222805617448

Divisors of 81585468

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81585467
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81585468 can be divided by 48 positive divisors. The sum of these divisors (counting 81585468) is 1, the average is 0.020833333333333.

Base conversion 81585468

Base System Value
2 Binary 100110111001110010100111100
3 Ternary 12200111222020000
4 Quaternary 10313032110330
5 Quinary 131341213333
6 Senary 12032354300
8 Octal 467162474
10 Decimal 81585468
12 Duodecimal 233a5990
16 Hexadecimal 4dce53c
20 Vigesimal 159i3d8
36 Base36 1cknr0

Cryptographic Hash Functions

md5 1aa0905d67f14e5a48c59b3eff801656
sha1 3580384ed9f379c16ab5bb7726685e8a4636acc3
sha256 8915757afc8c95f34dd7bf189f1bfd907236ea75ef47f17686fa5999404ffddc
sha512 0d76279450cbcc9308a7f90f3b5d22cf077855c858e03235fef06bf318bf19aa212c102f4c240354a2d3a609d49978e26a6a3000290680deefef31b1613e893b
ripemd-160 dd0720a97f6e2857afbc5c684a71372d411c76c2

81585468 as geometric shapes

Circle

Radius = n
Diameter 163170936
Circumference 512616613.81697
Area 2.0911033171416E+16

Sphere

Radius = n
Volume 2.2747152368714E+24
Surface area 8.3644132685666E+16
Circumference 512616613.81697

Square

Length = n
Perimeter 326341872
Area 6656188588779024
Diagonal 115379275.33816

Cube

Length = n
Surface area 39937131532674144
Volume 5.430482611118E+23
Space diagonal 141310175.73528

Equilateral Triangle

Length = n
Perimeter 244756404
Area 2.8822142051314E+15
Altitude 70655087.867642

Triangular Pyramid

Length = n
Surface area 2.8822142051314E+15
Volume 6.3998851323952E+22
Height 38459758.446052