21494890 (number)

21494890 is an even 8-digits composite number following 21494889 and preceding 21494891. In scientific notation, it is written as 2.1494890 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 8145360 positive integers (up to 21494890) that are relatively prime to 21494890.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1494890 × 10^7
Engineering notation 2.1494890 × 10^6

Prime Factorization of 21494890

Prime Factorization 2 × 5 × 19 × 113131

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21494890
Product of the distinct prime numbers

The prime factorization of 21494890 is 2 × 5 × 19 × 113131. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 6, 78, 66, 556, 960, 1850, 2627, 75614, 65199, 276096, 869639, 8411324, 5051592, 87057629, 991503, 954441009, 354353448, 5157511208, 9507828187

Basic calculations (n = 21494890)

Multiplication

n×y
n×2 42989780
n×3 64484670
n×4 85979560
n×5 107474450

Division

n÷y
n÷2 10747445
n÷3 7164963.3333333
n÷3 5373722.5
n÷5 4298978

Exponentiation

ny
n2 462030296112100
n3 9.931290391597E+21
n4 2.1347199452543E+29
n5 4.5885570404048E+36

Nth Root

y√n
2√n 4636.2581895317
3√n 278.04285694365
4√n 68.090074089633
5√n 29.272987372018

Divisors of 21494890

1, 2, 5, 10, 19, 38, 95, 190, 113131, 226262, 565655, 1131310, 2149489, 4298978, 10747445, 21494890

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 -21494889
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 21494890 can be divided by 16 positive divisors. The sum of these divisors (counting 21494890) is 1, the average is 0.0625.

Base conversion 21494890

Base System Value
2 Binary 1010001111111110001101010
3 Ternary 1111110001110001
4 Quaternary 1101333301222
5 Quinary 21000314030
6 Senary 2044413214
8 Octal 121776152
10 Decimal 21494890
12 Duodecimal 724720a
16 Hexadecimal 147fc6a
20 Vigesimal 6e6h4a
36 Base36 cspka

Cryptographic Hash Functions

md5 0981bf9493bcaa51637fc4f990fc9134
sha1 e032f6131dd46b496b40e7206cc74203ab2220ed
sha256 09d3371d9359bfa3963d8695f22697323798fcfdd939fa0613e21317120819c4
sha512 ca4f2a73482e1ac46bdfb5143e63d4452d5185701696b933618d026c55139e974ad508fc7868ab0ebefbbbc4703ec22a0cd445f67ea709c8f66c06bc13552a0a
ripemd-160 05492c87475a0c7767c974542c43a518c1157e74

21494890 as geometric shapes

Circle

Radius = n
Diameter 42989780
Circumference 135056377.02744
Area 1.4515109840017E+15

Sphere

Radius = n
Volume 4.1600091913211E+22
Surface area 5.8060439360068E+15
Circumference 135056377.02744

Square

Length = n
Perimeter 85979560
Area 462030296112100
Diagonal 30398364.959718

Cube

Length = n
Surface area 2772181776672600
Volume 9.931290391597E+21
Space diagonal 37230241.583104

Equilateral Triangle

Length = n
Perimeter 64484670
Area 2.0006498687556E+14
Altitude 18615120.791552

Triangular Pyramid

Length = n
Surface area 2.0006498687556E+14
Volume 1.1704137969718E+21
Height 10132788.319906