20421788 is an even 8-digits composite number following 20421787
and preceding 20421789 . In scientific notation, it is written as 2.0421788 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 10037712 positive integers (up to 20421788) that are relatively prime to 20421788.
20421788 has 12 divisors, whose sum is 36344280
The reverse of 20421788 is 88712402
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million four hundred twenty-one thousand seven hundred eighty-eight
Scientific notation
2.0421788 × 10^7
Engineering notation
2.0421788 × 10^6
Prime Factorization
2 × 2 × 59 × 86533
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10210894
Product of the distinct prime numbers
The prime factorization of 20421788 is 2 × 2 × 59 × 86533.
Since it has a total of 4 prime factors.
5 , 9 , 88 , 81 , 30 , 869 , 3569 , 7337 , 95563 , 87551 , 460270 , 529282 , 7701654 , 8009634 , 19519869 , 59528637 , 135992355 , 485823652 , 7240462862 , 5308198588
n×2
40843576
n×3
61265364
n×4
81687152
n×5
102108940
n÷2
10210894
n÷3
6807262.6666667
n÷3
5105447
n÷5
4084357.6
n2
417049425116944
n3
8.5168949452601E+21
n4
1.7393022299037E+29
n5
3.5519661407021E+36
2 √n
4519.0472447187
3 √n
273.33668381113
4 √n
67.223859192393
5 √n
28.974686967108
1 , 2 , 4 , 59 , 118 , 236 , 86533 , 173066 , 346132 , 5105447 , 10210894 , 20421788
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20421787
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20421788 can be divided by 12 positive divisors.
The sum of these divisors (counting 20421788) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101111001110010011100
3
Ternary
1102102112102112
4
Quaternary
1031321302130
5
Quinary
20211444123
6
Senary
2005413152
8
Octal
115716234
10
Decimal
20421788
12
Duodecimal
6a0a1b8
16
Hexadecimal
1379c9c
20
Vigesimal
67ce98
36
Base36
c5pjw
md5
63c724fc7821de8897e46e2741e2ccb7
sha1
8d9d590c073324ddcc4b8eff38bf5797923f174c
sha256
2e1e378a452f1ea633d2f525678e549774f2b7cab80ca96eeb09e96e73f42769
sha512
05bde20c0822d093846ffcdbc4058b2d791f935be7a532f0b2d2f813b7e3ed265cbf24f41c57a0db536fbfc93f48ed49bff5437b14c3b5bb9aaff11fd456f073
ripemd-160
e9a4449afb8dd032d21cd401540056724de703e3
Diameter
40843576
Circumference
128313878.30794
Area
1.3101994101312E+15
Volume
3.56754861219E+22
Surface area
5.240797640525E+15
Circumference
128313878.30794
Perimeter
81687152
Area
417049425116944
Diagonal
28880769.557508
Surface area
2502296550701664
Volume
8.5168949452601E+21
Space diagonal
35371574.3974
Perimeter
61265364
Area
1.8058769839248E+14
Altitude
17685787.1987
Surface area
1.8058769839248E+14
Volume
1.0037256950745E+21
Height
9626923.185836