81121 (number)

81121 is an odd 5-digits composite number following 81120 and preceding 81122. In scientific notation, it is written as 8.1121 × 10^4. The sum of its digits is 13. It has a total of 2 prime factors and 4 positive divisors. There are 77572 positive integers (up to 81121) that are relatively prime to 81121.

Interesting facts

Basic properties

Name

Name eighty-one thousand one hundred twenty-one

Notation

Scientific notation 8.1121 × 10^4
Engineering notation 8.1121 × 10^3

Prime Factorization of 81121

Prime Factorization 23 × 3527

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81121
Product of the distinct prime numbers

The prime factorization of 81121 is 23 × 3527. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 2, 63, 34, 279, 268, 9550, 9985, 61163, 35531, 692327, 879425, 93964, 6316555, 92896880, 83927965, 963626929, 938033067, 3030680278, 7002929664

Basic calculations (n = 81121)

Multiplication

n×y
n×2 162242
n×3 243363
n×4 324484
n×5 405605

Division

n÷y
n÷2 40560.5
n÷3 27040.333333333
n÷3 20280.25
n÷5 16224.2

Exponentiation

ny
n2 6580616641
n3 533826202534561
n4 4.3304515375806E+19
n5 3.5129055918008E+24

Nth Root

y√n
2√n 284.81748541829
3√n 43.289021105893
4√n 16.876536535033
5√n 9.5901778034867

Divisors of 81121

1, 23, 3527, 81121

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 -81120
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 81121 can be divided by 4 positive divisors. The sum of these divisors (counting 81121) is 1, the average is 0.25.

Base conversion 81121

Base System Value
2 Binary 10011110011100001
3 Ternary 11010021111
4 Quaternary 103303201
5 Quinary 10043441
6 Senary 1423321
8 Octal 236341
10 Decimal 81121
12 Duodecimal 3ab41
16 Hexadecimal 13ce1
20 Vigesimal a2g1
36 Base36 1qld

Cryptographic Hash Functions

md5 6b97e557ba006a34328a24df3a7d358d
sha1 6cb2a3506ef3fd09c82dfd9dd1ce72f728ac5884
sha256 c871b68f37c0b7da9d805cb3b02b621988028a79799dcae2037ee2a9c90a36e1
sha512 afb2f61c2e89122586d2393cc3843f989664cd59f8dff0b07a31a71f12874a19866a9c298542e52b05b1a8a6e5fea56c93f9981070a64900f72b4571d7eda3fe
ripemd-160 94134fbe825b95cb335d6e178c8520b9826963df

81121 as geometric shapes

Circle

Radius = n
Diameter 162242
Circumference 509698.27530372
Area 20673616895.456

Sphere

Radius = n
Volume 2.2360859682351E+15
Surface area 82694467581.825
Circumference 509698.27530372

Square

Length = n
Perimeter 324484
Area 6580616641
Diagonal 114722.41839327

Cube

Length = n
Surface area 39483699846
Volume 533826202534561
Space diagonal 140505.69356079

Equilateral Triangle

Length = n
Perimeter 243363
Area 2849490591.8363
Altitude 70252.846780397

Triangular Pyramid

Length = n
Surface area 2849490591.8363
Volume 62912021297875
Height 38240.806131089