21081430 (number)

21081430 is an even 8-digits composite number following 21081429 and preceding 21081431. In scientific notation, it is written as 2.1081430 × 10^7. The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors. There are 8337472 positive integers (up to 21081430) that are relatively prime to 21081430.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand four hundred thirty

Notation

Scientific notation 2.1081430 × 10^7
Engineering notation 2.1081430 × 10^6

Prime Factorization of 21081430

Prime Factorization 2 × 5 × 89 × 23687

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21081430
Product of the distinct prime numbers

The prime factorization of 21081430 is 2 × 5 × 89 × 23687. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21081430)

Multiplication

n×y
n×2 42162860
n×3 63244290
n×4 84325720
n×5 105407150

Division

n÷y
n÷2 10540715
n÷3 7027143.3333333
n÷3 5270357.5
n÷5 4216286

Exponentiation

ny
n2 444426690844900
n3 9.3691501731784E+21
n4 1.9751508353535E+29
n5 4.1639004074946E+36

Nth Root

y√n
2√n 4591.4518401046
3√n 276.24855960429
4√n 67.760252656735
5√n 29.159496005519

Divisors of 21081430

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 -21081429
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 21081430 can be divided by 16 positive divisors. The sum of these divisors (counting 21081430) is 1, the average is 0.0625.

Base conversion 21081430

Base System Value
2 Binary 1010000011010110101010110
3 Ternary 1110200001021201
4 Quaternary 1100122311112
5 Quinary 20344101210
6 Senary 2031503114
8 Octal 120326526
10 Decimal 21081430
12 Duodecimal 7087a9a
16 Hexadecimal 141ad56
20 Vigesimal 6bf3ba
36 Base36 cjuja

Cryptographic Hash Functions

md5 c5c60474e6a88dbb75e3afe90c41fd69
sha1 c5fee6977e707e36923c6eb132f3e03e74182f3c
sha256 cec68ff64018914d3af5a301c62c379e8d3af8a5b5a2b7a46c3604305d7902d9
sha512 d5ea98425d82318f893c46e2c135df694414c2add4d35eb7bb1a67d8d6ca732b17e4612de251694ba263d0d8c0690695272c5009ec47ec993ddbae0cb937de5f
ripemd-160 0ccfacc29c35a2f4905ec3f4d9ff321b9d3f5438

21081430 as geometric shapes

Circle

Radius = n
Diameter 42162860
Circumference 132458531.23033
Area 1.3962076270176E+15

Sphere

Radius = n
Volume 3.9245404472582E+22
Surface area 5.5848305080702E+15
Circumference 132458531.23033

Square

Length = n
Perimeter 84325720
Area 444426690844900
Diagonal 29813644.220219

Cube

Length = n
Surface area 2666560145069400
Volume 9.3691501731784E+21
Space diagonal 36514107.856207

Equilateral Triangle

Length = n
Perimeter 63244290
Area 1.9244240219577E+14
Altitude 18257053.928103

Triangular Pyramid

Length = n
Surface area 1.9244240219577E+14
Volume 1.1041649369016E+21
Height 9937881.4067397