21897430 (number)

21897430 is an even 8-digits composite number following 21897429 and preceding 21897431. In scientific notation, it is written as 2.1897430 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 8758968 positive integers (up to 21897430) that are relatively prime to 21897430.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred ninety-seven thousand four hundred thirty

Notation

Scientific notation 2.1897430 × 10^7
Engineering notation 2.1897430 × 10^6

Prime Factorization of 21897430

Prime Factorization 2 × 5 × 2189743

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21897430
Product of the distinct prime numbers

The prime factorization of 21897430 is 2 × 5 × 2189743. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21897430)

Multiplication

n×y
n×2 43794860
n×3 65692290
n×4 87589720
n×5 109487150

Division

n÷y
n÷2 10948715
n÷3 7299143.3333333
n÷3 5474357.5
n÷5 4379486

Exponentiation

ny
n2 479497440604900
n3 1.0499761640825E+22
n4 2.2991779554665E+29
n5 5.0346088337371E+36

Nth Root

y√n
2√n 4679.4689869685
3√n 279.76779217399
4√n 68.406644318871
5√n 29.381815637702

Divisors of 21897430

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 -21897429
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 21897430 can be divided by 8 positive divisors. The sum of these divisors (counting 21897430) is 1, the average is 0.125.

Base conversion 21897430

Base System Value
2 Binary 1010011100010000011010110
3 Ternary 1112012111121221
4 Quaternary 1103202003112
5 Quinary 21101204210
6 Senary 2101200554
8 Octal 123420326
10 Decimal 21897430
12 Duodecimal 740015a
16 Hexadecimal 14e20d6
20 Vigesimal 6gh3ba
36 Base36 d1c5y

Cryptographic Hash Functions

md5 dd554d4cb5260a711e0bdef41d2c3bd1
sha1 df53ff2701a7443c22057ed4146fbe9af718ab7e
sha256 8689511f871d489932b94f3aa1598b9c4b2abf9f0652acb52af4bde78cdf3a29
sha512 2b1c447d5ad293ae956db810ed17059cd5c3542325ca85e42971f8e4b882e4aebff17533c7c2b72dcd2b3678c5913a4e3752236a85d08faed410bf6a7ee45116
ripemd-160 6742a87ba7546c734ca1eaafbfd61c24600aa42c

21897430 as geometric shapes

Circle

Radius = n
Diameter 43794860
Circumference 137585610.44099
Area 1.5063856368195E+15

Sphere

Radius = n
Volume 4.3981298713679E+22
Surface area 6.0255425472778E+15
Circumference 137585610.44099

Square

Length = n
Perimeter 87589720
Area 479497440604900
Diagonal 30967642.487115

Cube

Length = n
Surface area 2876984643629400
Volume 1.0499761640825E+22
Space diagonal 37927461.315183

Equilateral Triangle

Length = n
Perimeter 65692290
Area 2.0762848230673E+14
Altitude 18963730.657591

Triangular Pyramid

Length = n
Surface area 2.0762848230673E+14
Volume 1.2374087761783E+21
Height 10322547.495705