20421808 (number)

20421808 is an even 8-digits composite number following 20421807 and preceding 20421809. In scientific notation, it is written as 2.0421808 × 10^7. The sum of its digits is 25. It has a total of 7 prime factors and 40 positive divisors. There are 8467200 positive integers (up to 20421808) that are relatively prime to 20421808.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0421808 × 10^7
Engineering notation 2.0421808 × 10^6

Prime Factorization of 20421808

Prime Factorization 2 × 2 × 2 × 2 × 341 × 19 × 197

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2552726
Product of the distinct prime numbers

The prime factorization of 20421808 is 2 × 2 × 2 × 2 × 341 × 19 × 197. Since it has a total of 7 prime factors.

Most popular turbo-numbers

6, 5, 94, 44, 611, 550, 4270, 7804, 33683, 24350, 760622, 716891, 2225305, 6681857, 2359963, 17188214, 129356626, 195595584, 9965165672, 2165252406

Basic calculations (n = 20421808)

Multiplication

n×y
n×2 40843616
n×3 61265424
n×4 81687232
n×5 102109040

Division

n÷y
n÷2 10210904
n÷3 6807269.3333333
n÷3 5105452
n÷5 4084361.6

Exponentiation

ny
n2 417050241988864
n3 8.5169199682501E+21
n4 1.7393090434297E+29
n5 3.5519835337585E+36

Nth Root

y√n
2√n 4519.049457574
3√n 273.33677304152
4√n 67.223875651245
5√n 28.974692642356

Divisors of 20421808

1, 2, 4, 8, 16, 19, 38, 76, 152, 197, 304, 341, 394, 682, 788, 1364, 1576, 2728, 3152, 3743, 5456, 6479, 7486, 12958, 14972, 25916, 29944, 51832, 59888, 67177, 103664, 134354, 268708, 537416, 1074832, 1276363, 2552726, 5105452, 10210904, 20421808

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20421807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20421808 can be divided by 40 positive divisors. The sum of these divisors (counting 20421808) is 1, the average is 0.025.

Base conversion 20421808

Base System Value
2 Binary 1001101111001110010110000
3 Ternary 1102102112110021
4 Quaternary 1031321302300
5 Quinary 20211444213
6 Senary 2005413224
8 Octal 115716260
10 Decimal 20421808
12 Duodecimal 6a0a214
16 Hexadecimal 1379cb0
20 Vigesimal 67cea8
36 Base36 c5pkg

Cryptographic Hash Functions

md5 36a022a6e6fcc9e1bde35a908ce861e9
sha1 917bd21e9b432d2e484d5cf39d8fa884b934d361
sha256 ad6c88d0aee0b9cb74751ec002aee9e83391b570ba67bfca23d97e793e3188f5
sha512 73bf26abdf0fab7175e6681ca4d12e2fd2fa4fa7a6d80f3cd941c63b332fc1bcf7cc7936f36d1a97acac2de178416628fa2f53000178c1f8f0084f1cd13079a6
ripemd-160 3495c198ed205a33e240ed07941b04062670696c

20421808 as geometric shapes

Circle

Radius = n
Diameter 40843616
Circumference 128314003.97164
Area 1.3102019764101E+15

Sphere

Radius = n
Volume 3.5675590937956E+22
Surface area 5.2408079056402E+15
Circumference 128314003.97164

Square

Length = n
Perimeter 81687232
Area 417050241988864
Diagonal 28880797.841779

Cube

Length = n
Surface area 2502301451933184
Volume 8.5169199682501E+21
Space diagonal 35371609.038417

Equilateral Triangle

Length = n
Perimeter 61265424
Area 1.805880521084E+14
Altitude 17685804.519208

Triangular Pyramid

Length = n
Surface area 1.805880521084E+14
Volume 1.0037286440621E+21
Height 9626932.6139265