20021668 is an even 8-digits composite number following 20021667
and preceding 20021669 . In scientific notation, it is written as 2.0021668 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 9483912 positive integers (up to 20021668) that are relatively prime to 20021668.
20021668 has 12 divisors, whose sum is 36882160
The reverse of 20021668 is 86612002
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million twenty-one thousand six hundred sixty-eight
Scientific notation
2.0021668 × 10^7
Engineering notation
2.0021668 × 10^6
Prime Factorization
2 × 2 × 19 × 263443
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10010834
Product of the distinct prime numbers
The prime factorization of 20021668 is 2 × 2 × 19 × 263443.
Since it has a total of 4 prime factors.
10 , 6 , 8 , 56 , 416 , 819 , 2959 , 888 , 47727 , 57915 , 369634 , 235680 , 3823033 , 3987413 , 91230235 , 3853409 , 941916596 , 476941669 , 5512758004 , 8911706982
n×2
40043336
n×3
60065004
n×4
80086672
n×5
100108340
n÷2
10010834
n÷3
6673889.3333333
n÷3
5005417
n÷5
4004333.6
n2
400867189502224
n3
8.0260297803066E+21
n4
1.6069450361941E+29
n5
3.2173720008927E+36
2 √n
4474.5578552523
3 √n
271.53975294828
4 √n
66.892135974659
5 √n
28.860247494813
1 , 2 , 4 , 19 , 38 , 76 , 263443 , 526886 , 1053772 , 5005417 , 10010834 , 20021668
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
-20021667
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 20021668 can be divided by 12 positive divisors.
The sum of these divisors (counting 20021668) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100011000000110100100
3
Ternary
1101200012120021
4
Quaternary
1030120012210
5
Quinary
20111143133
6
Senary
1553044524
8
Octal
114300644
10
Decimal
20021668
12
Duodecimal
6856744
16
Hexadecimal
13181a4
20
Vigesimal
652e38
36
Base36
bx4tg
md5
aa0f8e02c8d7ac9243c85120f196354f
sha1
4a9f4366a03c2c54836cfa967b111837ee40f866
sha256
80e98aad680b42bec9816c0461cc45de5de994d5af06877f4ab58ea13b9e5f39
sha512
129105dd2fe36a76cb5d727a61bdd397a81070d2ee18446bd6ca77fbe8feded62131381c631ee0b1bcb46bcfd38629fedcfe8cba7e3a3e3be48efbc0393e3274
ripemd-160
b4c5843a0f6f17a7da0dabc3c595f6e462f4f9bb
Diameter
40043336
Circumference
125799850.20283
Area
1.2593614176054E+15
Volume
3.3619354927072E+22
Surface area
5.0374456704215E+15
Circumference
125799850.20283
Perimeter
80086672
Area
400867189502224
Diagonal
28314914.426931
Surface area
2405203137013344
Volume
8.0260297803066E+21
Space diagonal
34678546.228276
Perimeter
60065004
Area
1.735805848263E+14
Altitude
17339273.114138
Surface area
1.735805848263E+14
Volume
9.4587668061E+20
Height
9438304.8089771