81581301 (number)

81581301 is an odd 8-digits composite number following 81581300 and preceding 81581302. In scientific notation, it is written as 8.1581301 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 54387528 positive integers (up to 81581301) that are relatively prime to 81581301.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred eighty-one thousand three hundred one

Notation

Scientific notation 8.1581301 × 10^7
Engineering notation 8.1581301 × 10^6

Prime Factorization of 81581301

Prime Factorization 9 × 9064589

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81581301
Product of the distinct prime numbers

The prime factorization of 81581301 is 9 × 9064589. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 10, 60, 29, 936, 802, 1490, 6406, 98246, 8629, 235366, 834932, 8283325, 9053448, 16655440, 67347586, 434369238, 290107734, 2893302587, 7235306501

Basic calculations (n = 81581301)

Multiplication

n×y
n×2 163162602
n×3 244743903
n×4 326325204
n×5 407906505

Division

n÷y
n÷2 40790650.5
n÷3 27193767
n÷3 20395325.25
n÷5 16316260.2

Exponentiation

ny
n2 6655508672852601
n3 5.429650563481E+23
n4 4.4295795694416E+31
n5 3.6137086415807E+39

Nth Root

y√n
2√n 9032.2367661615
3√n 433.70744333007
4√n 95.038080610677
5√n 38.22241516143

Divisors of 81581301

1, 9, 9064589, 81581301

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81581300
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81581301 can be divided by 4 positive divisors. The sum of these divisors (counting 81581301) is 1, the average is 0.25.

Base conversion 81581301

Base System Value
2 Binary 100110111001101010011110101
3 Ternary 12200111202111200
4 Quaternary 10313031103311
5 Quinary 131341100201
6 Senary 12032323113
8 Octal 467152365
10 Decimal 81581301
12 Duodecimal 233a3499
16 Hexadecimal 4dcd4f5
20 Vigesimal 159hd51
36 Base36 1ckkj9

Cryptographic Hash Functions

md5 55cf31019b1033bcec9b1c93e92d3ef8
sha1 672de4e6425edb78963f30c1715498e943a7429f
sha256 95f6a31b225b0a84988c3f62a87574755963b2b9cc82da780d2da7e9628ab198
sha512 16f2bd135a50bd484b8c96b9f3c0ea48bd1d80ff2bcb9ffd6811a023f3839bfa8b89025a61064442aa31e1c786a395e0f9551c779bba7b3c9581bc5f3c7d0c0d
ripemd-160 2c1b5173381b656b7abb37245e81948b92387212

81581301 as geometric shapes

Circle

Radius = n
Diameter 163162602
Circumference 512590431.7838
Area 2.0908897152537E+16

Sphere

Radius = n
Volume 2.2743667095722E+24
Surface area 8.3635588610148E+16
Circumference 512590431.7838

Square

Length = n
Perimeter 326325204
Area 6655508672852601
Diagonal 115373382.31024

Cube

Length = n
Surface area 39933052037115606
Volume 5.429650563481E+23
Space diagonal 141302958.27957

Equilateral Triangle

Length = n
Perimeter 244743903
Area 2.881919792899E+15
Altitude 70651479.139785

Triangular Pyramid

Length = n
Surface area 2.881919792899E+15
Volume 6.3989045548513E+22
Height 38457794.103414