81330 (number)

81330 is an even 5-digits composite number following 81329 and preceding 81331. In scientific notation, it is written as 8.1330 × 10^4. The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors. There are 21680 positive integers (up to 81330) that are relatively prime to 81330.

Interesting facts

Basic properties

Name

Name eighty-one thousand three hundred thirty

Notation

Scientific notation 8.1330 × 10^4
Engineering notation 8.1330 × 10^3

Prime Factorization of 81330

Prime Factorization 2 × 15 × 2711

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81330
Product of the distinct prime numbers

The prime factorization of 81330 is 2 × 15 × 2711. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81330)

Multiplication

n×y
n×2 162660
n×3 243990
n×4 325320
n×5 406650

Division

n÷y
n÷2 40665
n÷3 27110
n÷3 20332.5
n÷5 16266

Exponentiation

ny
n2 6614568900
n3 537962888637000
n4 4.3752521732847E+19
n5 3.5583925925325E+24

Nth Root

y√n
2√n 285.18415103228
3√n 43.326165809923
4√n 16.887396218253
5√n 9.5951143421134

Divisors of 81330

1, 2, 15, 30, 2711, 5422, 40665, 81330

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 -81329
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 81330 can be divided by 8 positive divisors. The sum of these divisors (counting 81330) is 1, the average is 0.125.

Base conversion 81330

Base System Value
2 Binary 10011110110110010
3 Ternary 11010120020
4 Quaternary 103312302
5 Quinary 10100310
6 Senary 1424310
8 Octal 236662
10 Decimal 81330
12 Duodecimal 3b096
16 Hexadecimal 13db2
20 Vigesimal a36a
36 Base36 1qr6

Cryptographic Hash Functions

md5 6dc6a2d8ca20d02b6622787dfe05f25e
sha1 33664f86129b539c21f85b8f07d7836e97dae95f
sha256 0d2838970de8f6ffeef86881edaf5bd9a6ea1cdc27ce76befec4707e3ff6c86f
sha512 e19debedebc4addc2a631197dcd18404fa8ee0267d57f82e749c8ff666d0854c0f8fa973420c972bb653cf9075e637b2d831f9fc96e57a411aebb074fa6ecd4a
ripemd-160 34c7b7e20e4193bc6e9597ea020b0c2008ac14cf

81330 as geometric shapes

Circle

Radius = n
Diameter 162660
Circumference 511011.46103292
Area 20780281062.904

Sphere

Radius = n
Volume 2.2534136784613E+15
Surface area 83121124251.614
Circumference 511011.46103292

Square

Length = n
Perimeter 325320
Area 6614568900
Diagonal 115017.9890278

Cube

Length = n
Surface area 39687413400
Volume 537962888637000
Space diagonal 140867.69217958

Equilateral Triangle

Length = n
Perimeter 243990
Area 2864192351.2412
Altitude 70433.846089788

Triangular Pyramid

Length = n
Surface area 2864192351.2412
Volume 63399534430321
Height 38339.329675935