20281 (number)

20281 is an odd 5-digits composite number following 20280 and preceding 20282. In scientific notation, it is written as 2.0281 × 10^4. The sum of its digits is 13. It has a total of 2 prime factors and 4 positive divisors. There are 19072 positive integers (up to 20281) that are relatively prime to 20281.

Interesting facts

Basic properties

Name

Name twenty thousand two hundred eighty-one

Notation

Scientific notation 2.0281 × 10^4
Engineering notation 2.0281 × 10^3

Prime Factorization of 20281

Prime Factorization 1193 × 17

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20281
Product of the distinct prime numbers

The prime factorization of 20281 is 1193 × 17. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 7, 59, 48, 800, 386, 754, 2190, 35767, 57692, 241300, 137823, 6206923, 9411675, 33716622, 22847616, 783341110, 836869140, 1501330444, 3398304874

Basic calculations (n = 20281)

Multiplication

n×y
n×2 40562
n×3 60843
n×4 81124
n×5 101405

Division

n÷y
n÷2 10140.5
n÷3 6760.3333333333
n÷3 5070.25
n÷5 4056.2

Exponentiation

ny
n2 411318961
n3 8341959848041
n4 169183287678119521
n5 3.4312062573999E+21

Nth Root

y√n
2√n 142.4113759501
3√n 27.270710625296
4√n 11.933623756014
5√n 7.2680494421693

Divisors of 20281

1, 17, 1193, 20281

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 -20280
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 20281 can be divided by 4 positive divisors. The sum of these divisors (counting 20281) is 1, the average is 0.25.

Base conversion 20281

Base System Value
2 Binary 100111100111001
3 Ternary 1000211011
4 Quaternary 10330321
5 Quinary 1122111
6 Senary 233521
8 Octal 47471
10 Decimal 20281
12 Duodecimal b8a1
16 Hexadecimal 4f39
20 Vigesimal 2ae1
36 Base36 fnd

Cryptographic Hash Functions

md5 a829b6def307bd357011e57e5d6a635d
sha1 f86cb148df1849cfc81070c761197e772ef5752d
sha256 4545967d446ae8457edde2bd5e16918957be0eafe7ed56a6f81e7162284a59c2
sha512 9514604a6fce8bbc0bc077679e8e0219962f47979689fc54e2a9ece7dfda3d5cc131eb6a6d4c43e6dee0025d831118719f3395860a9dceae5ada48e1beba045e
ripemd-160 7afe0b66980dd0c35e028e90e9ed31093ee7d4e8

20281 as geometric shapes

Circle

Radius = n
Diameter 40562
Circumference 127429.28121491
Area 1292196626.1598

Sphere

Radius = n
Volume 34942719700196
Surface area 5168786504.6391
Circumference 127429.28121491

Square

Length = n
Perimeter 81124
Area 411318961
Diagonal 28681.665258489

Cube

Length = n
Surface area 2467913766
Volume 8341959848041
Space diagonal 35127.722428304

Equilateral Triangle

Length = n
Perimeter 60843
Area 178106334.64211
Altitude 17563.861214152

Triangular Pyramid

Length = n
Surface area 178106334.64211
Volume 983109396155.95
Height 9560.5550861629