20021906 is an even 8-digits composite number following 20021905
and preceding 20021907 . In scientific notation, it is written as 2.0021906 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 9797908 positive integers (up to 20021906) that are relatively prime to 20021906.
20021906 has 8 divisors, whose sum is 30672000
The reverse of 20021906 is 60912002
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million twenty-one thousand nine hundred six
Scientific notation
2.0021906 × 10^7
Engineering notation
2.0021906 × 10^6
Prime Factorization
2 × 47 × 212999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20021906
Product of the distinct prime numbers
The prime factorization of 20021906 is 2 × 47 × 212999.
Since it has a total of 3 prime factors.
7 , 10 , 46 , 100 , 903 , 481 , 9924 , 6979 , 60671 , 59995 , 145022 , 657758 , 1860515 , 2766347 , 53580844 , 75179911 , 725368566 , 848929163 , 4427052336 , 7914209379
n×2
40043812
n×3
60065718
n×4
80087624
n×5
100109530
n÷2
10010953
n÷3
6673968.6666667
n÷3
5005476.5
n÷5
4004381.2
n2
400876719872836
n3
8.0263160028823E+21
n4
1.60702144536E+29
n5
3.2175632318983E+36
2 √n
4474.5844499797
3 √n
271.54082888603
4 √n
66.89233476251
5 √n
28.860316107541
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20021905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021906 can be divided by 8 positive divisors.
The sum of these divisors (counting 20021906) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011000001010010010
3
Ternary
1101200012220002
4
Quaternary
1030120022102
5
Quinary
20111200111
6
Senary
1553050002
8
Octal
114301222
10
Decimal
20021906
12
Duodecimal
6856902
16
Hexadecimal
1318292
20
Vigesimal
652ef6
36
Base36
bx502
md5
a1a34852996c4931adebdff179cb9ca4
sha1
3c294111d0ac9eec9a1cf74b7789d758e818ab59
sha256
e3959526406bdb8f863461705a5609ad95b054c066fb95e647407322b626113d
sha512
6333ec17207f9848310ab4f2f5a89f4b40ada055e458063e06a86b10bf17a595787810110b393c7773da9d4a5ec3e4e5ac94019a251ff23e34948b0842fd5591
ripemd-160
9634786c8cb95a1d788e8b528f1dc50f7289f15c
Diameter
40043812
Circumference
125801345.60093
Area
1.2593913581477E+15
Volume
3.3620553853393E+22
Surface area
5.0375654325907E+15
Circumference
125801345.60093
Perimeter
80087624
Area
400876719872836
Diagonal
28315251.009759
Surface area
2405260319237016
Volume
8.0263160028823E+21
Space diagonal
34678958.456368
Perimeter
60065718
Area
1.7358471159783E+14
Altitude
17339479.228184
Surface area
1.7358471159783E+14
Volume
9.4591041226402E+20
Height
9438417.0032531