21086 (number)

21086 is an even 5-digits composite number following 21085 and preceding 21087. In scientific notation, it is written as 2.1086 × 10^4. The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors. There are 9720 positive integers (up to 21086) that are relatively prime to 21086.

Interesting facts

Basic properties

Name

Name twenty-one thousand eighty-six

Notation

Scientific notation 2.1086 × 10^4
Engineering notation 2.1086 × 10^3

Prime Factorization of 21086

Prime Factorization 2 × 13 × 811

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21086
Product of the distinct prime numbers

The prime factorization of 21086 is 2 × 13 × 811. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 5, 15, 39, 124, 187, 3665, 6404, 7817, 74175, 254623, 607835, 841440, 1934262, 93122386, 28372748, 746148157, 47130832, 9876189272, 8054520492

Basic calculations (n = 21086)

Multiplication

n×y
n×2 42172
n×3 63258
n×4 84344
n×5 105430

Division

n÷y
n÷2 10543
n÷3 7028.6666666667
n÷3 5271.5
n÷5 4217.2

Exponentiation

ny
n2 444619396
n3 9375244584056
n4 197686407299404816
n5 4.1684155843152E+21

Nth Root

y√n
2√n 145.21019247973
3√n 27.626851974147
4√n 12.050319185803
5√n 7.324851769315

Divisors of 21086

1, 2, 13, 26, 811, 1622, 10543, 21086

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 -21085
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 21086 can be divided by 8 positive divisors. The sum of these divisors (counting 21086) is 1, the average is 0.125.

Base conversion 21086

Base System Value
2 Binary 101001001011110
3 Ternary 1001220222
4 Quaternary 11021132
5 Quinary 1133321
6 Senary 241342
8 Octal 51136
10 Decimal 21086
12 Duodecimal 10252
16 Hexadecimal 525e
20 Vigesimal 2ce6
36 Base36 g9q

Cryptographic Hash Functions

md5 da3b06fe1b65ab19e14819bea1195afd
sha1 df8186775df4a4546b52b69ad928b86e5f7713d3
sha256 39bd545bcf05cd0d774619fec020bd676e1afb25055c8972ee0efb56f15be8e3
sha512 4c4e576365c59414f083754ebfe8db4f322bbae6560d079806641ec0a5ec5020cdd24da50250e140302dd64cee0d35251d7fdc6aa88f63ed114627e5a9238f82
ripemd-160 ade9bdcc52fa677bc5c53550125eb58a9e751c2e

21086 as geometric shapes

Circle

Radius = n
Diameter 42172
Circumference 132487.24538719
Area 1396813028.1171

Sphere

Radius = n
Volume 39270932681170
Surface area 5587252112.4685
Circumference 132487.24538719

Square

Length = n
Perimeter 84344
Area 444619396
Diagonal 29820.107176199

Cube

Length = n
Surface area 2667716376
Volume 9375244584056
Space diagonal 36522.023328397

Equilateral Triangle

Length = n
Perimeter 63258
Area 192525845.97565
Altitude 18261.011664199

Triangular Pyramid

Length = n
Surface area 192525845.97565
Volume 1104883170111.4
Height 9940.0357253997