21090 (number)

21090 is an even 5-digits composite number following 21089 and preceding 21091. In scientific notation, it is written as 2.1090 × 10^4. The sum of its digits is 12. It has a total of 4 prime factors and 16 positive divisors. There are 5184 positive integers (up to 21090) that are relatively prime to 21090.

Interesting facts

Basic properties

Name

Name twenty-one thousand ninety

Notation

Scientific notation 2.1090 × 10^4
Engineering notation 2.1090 × 10^3

Prime Factorization of 21090

Prime Factorization 2 × 19 × 15 × 37

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21090
Product of the distinct prime numbers

The prime factorization of 21090 is 2 × 19 × 15 × 37. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 7, 52, 95, 881, 385, 3338, 7278, 49519, 30199, 188884, 491603, 5432860, 3154151, 87021964, 67279830, 589511107, 929823231, 8858165065, 3844894317

Basic calculations (n = 21090)

Multiplication

n×y
n×2 42180
n×3 63270
n×4 84360
n×5 105450

Division

n÷y
n÷2 10545
n÷3 7030
n÷3 5272.5
n÷5 4218

Exponentiation

ny
n2 444788100
n3 9380581029000
n4 197836453901610000
n5 4.172370812785E+21

Nth Root

y√n
2√n 145.22396496446
3√n 27.628598795433
4√n 12.050890629512
5√n 7.3251296521197

Divisors of 21090

1, 2, 15, 19, 30, 37, 38, 74, 285, 555, 570, 703, 1110, 1406, 10545, 21090

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21089
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21090 can be divided by 16 positive divisors. The sum of these divisors (counting 21090) is 1, the average is 0.0625.

Base conversion 21090

Base System Value
2 Binary 101001001100010
3 Ternary 1001221010
4 Quaternary 11021202
5 Quinary 1133330
6 Senary 241350
8 Octal 51142
10 Decimal 21090
12 Duodecimal 10256
16 Hexadecimal 5262
20 Vigesimal 2cea
36 Base36 g9u

Cryptographic Hash Functions

md5 30b6b8f7a8e3dba528fe76dec93d773a
sha1 dd6b5eda71efcdc7a1c2b41159b0a76bb08fa5c6
sha256 ad63ae7e99775887985974467e5fd52cce63c0aa631494ba753d34cfa99cf5ea
sha512 6782ea0045b005c8fbce20bee4272ff651284af265e3e61a766eea07f2547420009ee1bd75fbc90f62912ade116a464168ca1a106261a93bea1de860571da5cd
ripemd-160 2f3d8590590a50b5b4fd8169442d93de3b88d50f

21090 as geometric shapes

Circle

Radius = n
Diameter 42180
Circumference 132512.37812842
Area 1397343027.3642

Sphere

Radius = n
Volume 39293285929480
Surface area 5589372109.4566
Circumference 132512.37812842

Square

Length = n
Perimeter 84360
Area 444788100
Diagonal 29825.764030449

Cube

Length = n
Surface area 2668728600
Volume 9380581029000
Space diagonal 36528.951531628

Equilateral Triangle

Length = n
Perimeter 63270
Area 192598896.95051
Altitude 18264.475765814

Triangular Pyramid

Length = n
Surface area 192598896.95051
Volume 1105512076179.3
Height 9941.9213434829