81585412 (number)

81585412 is an even 8-digits composite number following 81585411 and preceding 81585413. In scientific notation, it is written as 8.1585412 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 40542120 positive integers (up to 81585412) that are relatively prime to 81585412.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred eighty-five thousand four hundred twelve

Notation

Scientific notation 8.1585412 × 10^7
Engineering notation 8.1585412 × 10^6

Prime Factorization of 81585412

Prime Factorization 2 × 2 × 163 × 125131

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40792706
Product of the distinct prime numbers

The prime factorization of 81585412 is 2 × 2 × 163 × 125131. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 3, 13, 29, 309, 142, 6656, 7985, 53884, 60575, 242793, 803680, 4865636, 43577, 9146053, 65972260, 999459600, 548211419, 5116128825, 3616758827

Basic calculations (n = 81585412)

Multiplication

n×y
n×2 163170824
n×3 244756236
n×4 326341648
n×5 407927060

Division

n÷y
n÷2 40792706
n÷3 27195137.333333
n÷3 20396353
n÷5 16317082.4

Exponentiation

ny
n2 6656179451209744
n3 5.4304714287288E+23
n4 4.4304724886707E+31
n5 3.6146192334286E+39

Nth Root

y√n
2√n 9032.4643370456
3√n 433.71472825659
4√n 95.03927786471
5√n 38.222800370245

Divisors of 81585412

1, 2, 4, 163, 326, 652, 125131, 250262, 500524, 20396353, 40792706, 81585412

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 -81585411
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 81585412 can be divided by 12 positive divisors. The sum of these divisors (counting 81585412) is 1, the average is 0.083333333333333.

Base conversion 81585412

Base System Value
2 Binary 100110111001110010100000100
3 Ternary 12200111222010221
4 Quaternary 10313032110010
5 Quinary 131341213122
6 Senary 12032354124
8 Octal 467162404
10 Decimal 81585412
12 Duodecimal 233a5944
16 Hexadecimal 4dce504
20 Vigesimal 159i3ac
36 Base36 1cknpg

Cryptographic Hash Functions

md5 7a2d4a6dc0fd495dbc4277515af1ba5f
sha1 4dd8166771e2ebe2e8f00a9cf4c552bcfa9920d4
sha256 c233c74547db325f967b7dfeba1e0aa230286eb72425b79e10b9af2be1d4f72c
sha512 3112602b6f6c0cfeeb845aea8bc5c3ab8962a49b043a7a6ed0367a1d6d06b0f5bb238dbbc8ecbdb3bc845fcfbd601d7eb4e679f9d32148d261ee85bfa91c6a14
ripemd-160 2f71f41f6fe0b392ae179eafe7c1581f8ed983b0

81585412 as geometric shapes

Circle

Radius = n
Diameter 163170824
Circumference 512616261.95859
Area 2.0911004464896E+16

Sphere

Radius = n
Volume 2.2747105528032E+24
Surface area 8.3644017859583E+16
Circumference 512616261.95859

Square

Length = n
Perimeter 326341648
Area 6656179451209744
Diagonal 115379196.1422

Cube

Length = n
Surface area 39937076707258464
Volume 5.4304714287288E+23
Space diagonal 141310078.74044

Equilateral Triangle

Length = n
Perimeter 244756236
Area 2.8822102484478E+15
Altitude 70655039.37022

Triangular Pyramid

Length = n
Surface area 2.8822102484478E+15
Volume 6.3998719538232E+22
Height 38459732.047399