20921820 (number)

20921820 is an even 8-digits composite number following 20921819 and preceding 20921821. In scientific notation, it is written as 2.0921820 × 10^7. The sum of its digits is 24. It has a total of 6 prime factors and 48 positive divisors. There are 5541120 positive integers (up to 20921820) that are relatively prime to 20921820.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand eight hundred twenty

Notation

Scientific notation 2.0921820 × 10^7
Engineering notation 2.0921820 × 10^6

Prime Factorization of 20921820

Prime Factorization 2 × 2 × 3 × 5 × 157 × 2221

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10460910
Product of the distinct prime numbers

The prime factorization of 20921820 is 2 × 2 × 3 × 5 × 157 × 2221. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20921820)

Multiplication

n×y
n×2 41843640
n×3 62765460
n×4 83687280
n×5 104609100

Division

n÷y
n÷2 10460910
n÷3 6973940
n÷3 5230455
n÷5 4184364

Exponentiation

ny
n2 437722552112400
n3 9.1579524452363E+21
n4 1.9160103262779E+29
n5 4.0086423164528E+36

Nth Root

y√n
2√n 4574.0376036933
3√n 275.54962254058
4√n 67.631631679956
5√n 29.115207678149

Divisors of 20921820

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921819
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921820 can be divided by 48 positive divisors. The sum of these divisors (counting 20921820) is 1, the average is 0.020833333333333.

Base conversion 20921820

Base System Value
2 Binary 1001111110011110111011100
3 Ternary 1110100221100020
4 Quaternary 1033303313130
5 Quinary 20323444240
6 Senary 2024232140
8 Octal 117636734
10 Decimal 20921820
12 Duodecimal 700b650
16 Hexadecimal 13f3ddc
20 Vigesimal 6af4b0
36 Base36 cgfdo

Cryptographic Hash Functions

md5 7101d507c8c3df5ad742fb064109b0f4
sha1 49ae1c55eefd53153c8796b0a9d37c5d954082f7
sha256 f7d38e5c517d1cf712d9c03cbbd6ecfadaffd22d7507b36d4aa592b2ec47b26d
sha512 e90d603c066b85bf4f532155ad7a25b692111d2cfda5a58efc9603843d6b370c37b9a346adcac2e9986cb86cd1b578cd39b4af4e3ba59d3f774ea352dc4f4b60
ripemd-160 1ea1ddb94cf21ab3d8e969e8aaac42cf96b1d66b

20921820 as geometric shapes

Circle

Radius = n
Diameter 41843640
Circumference 131455672.02346
Area 1.3751459540269E+15

Sphere

Radius = n
Volume 3.8360741498505E+22
Surface area 5.5005838161076E+15
Circumference 131455672.02346

Square

Length = n
Perimeter 83687280
Area 437722552112400
Diagonal 29587921.593529

Cube

Length = n
Surface area 2626335312674400
Volume 9.1579524452363E+21
Space diagonal 36237655.226811

Equilateral Triangle

Length = n
Perimeter 62765460
Area 1.8953942496935E+14
Altitude 18118827.613405

Triangular Pyramid

Length = n
Surface area 1.8953942496935E+14
Volume 1.0792750459684E+21
Height 9862640.5311762