21081432 (number)

21081432 is an even 8-digits composite number following 21081431 and preceding 21081433. In scientific notation, it is written as 2.1081432 × 10^7. The sum of its digits is 21. It has a total of 7 prime factors and 64 positive divisors. There are 6652800 positive integers (up to 21081432) that are relatively prime to 21081432.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1081432 × 10^7
Engineering notation 2.1081432 × 10^6

Prime Factorization of 21081432

Prime Factorization 2 × 2 × 2 × 3 × 23 × 181 × 211

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 5270358
Product of the distinct prime numbers

The prime factorization of 21081432 is 2 × 2 × 2 × 3 × 23 × 181 × 211. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21081432)

Multiplication

n×y
n×2 42162864
n×3 63244296
n×4 84325728
n×5 105407160

Division

n÷y
n÷2 10540716
n÷3 7027144
n÷3 5270358
n÷5 4216286.4

Exponentiation

ny
n2 444426775170624
n3 9.3691528397388E+21
n4 1.9751515848856E+29
n5 4.1639023826458E+36

Nth Root

y√n
2√n 4591.4520579006
3√n 276.24856834021
4√n 67.760254263843
5√n 29.159496558793

Divisors of 21081432

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21081431
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081432 can be divided by 64 positive divisors. The sum of these divisors (counting 21081432) is 1, the average is 0.015625.

Base conversion 21081432

Base System Value
2 Binary 1010000011010110101011000
3 Ternary 1110200001021210
4 Quaternary 1100122311120
5 Quinary 20344101212
6 Senary 2031503120
8 Octal 120326530
10 Decimal 21081432
12 Duodecimal 7087aa0
16 Hexadecimal 141ad58
20 Vigesimal 6bf3bc
36 Base36 cjujc

Cryptographic Hash Functions

md5 3d0c1fcdeac34958c03106ad1060b237
sha1 ed7a159d94c25a700eaa380447b8d3686c3adc28
sha256 70d2f913dcca75aae6e1569dcad53ffbda5938ab4ea811b516db01ade9815139
sha512 f01b9065d2980faa04aa4790a4049cc01b9ff5aa7ec4120301f32f39e10a0f16e8437942ded043aeea68b9c44b801b03827dc130615c739e8ae09a06fa8e3527
ripemd-160 2596f3ca2f3e3e454d409fb4666553c983240304

21081432 as geometric shapes

Circle

Radius = n
Diameter 42162864
Circumference 132458543.79671
Area 1.3962078919346E+15

Sphere

Radius = n
Volume 3.9245415642244E+22
Surface area 5.5848315677385E+15
Circumference 132458543.79671

Square

Length = n
Perimeter 84325728
Area 444426775170624
Diagonal 29813647.048646

Cube

Length = n
Surface area 2666560651023744
Volume 9.3691528397388E+21
Space diagonal 36514111.320308

Equilateral Triangle

Length = n
Perimeter 63244296
Area 1.9244243870988E+14
Altitude 18257055.660154

Triangular Pyramid

Length = n
Surface area 1.9244243870988E+14
Volume 1.1041652511588E+21
Height 9937882.3495487