21031843 is an odd 8-digits composite number following 21031842
and preceding 21031844 . In scientific notation, it is written as 2.1031843 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 18027288 positive integers (up to 21031843) that are relatively prime to 21031843.
21031843 has 4 divisors, whose sum is 24036400
The reverse of 21031843 is 34813012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million thirty-one thousand eight hundred forty-three
Scientific notation
2.1031843 × 10^7
Engineering notation
2.1031843 × 10^6
Prime Factorization
7 × 3004549
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031843
Product of the distinct prime numbers
The prime factorization of 21031843 is 7 × 3004549.
Since it has a total of 2 prime factors.
8 , 3 , 38 , 57 , 203 , 292 , 9104 , 8228 , 22760 , 91908 , 123544 , 281078 , 8809653 , 4793471 , 5152104 , 95268462 , 645603782 , 671524905 , 3262031063 , 9340878849
n×2
42063686
n×3
63095529
n×4
84127372
n×5
105159215
n÷2
10515921.5
n÷3
7010614.3333333
n÷3
5257960.75
n÷5
4206368.6
n2
442338419976649
n3
9.3031922018169E+21
n4
1.9566327778744E+29
n5
4.1151593392908E+36
2 √n
4586.0487350223
3 √n
276.03179550382
4 √n
67.720371639724
5 √n
29.145765492175
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031842
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031843 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031843) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101110100011
3
Ternary
1110120112021011
4
Quaternary
1100032232203
5
Quinary
20341004333
6
Senary
2030441351
8
Octal
120165643
10
Decimal
21031843
12
Duodecimal
7063257
16
Hexadecimal
140eba3
20
Vigesimal
6b8jc3
36
Base36
cis9v
md5
94274d59e241f799a5424940f2cfc005
sha1
019e1431aac532fa2a916817b458a9a8f17f3f88
sha256
3f843d13811460a80db5db4b4855a769d7f942a03a799e6559c8a837706ca756
sha512
8afa3dde99106e75a3ec0881a40354c44245e9305954a805e692b2c9e31efecdb11d93d94eda5a1c73cf92e47d862c1f3e777a8cecb2630e426a53a13ecbb9ef
ripemd-160
a1e7f51d2155726b179e20e14d719d5ba5bee1c4
Diameter
42063686
Circumference
132146966.92051
Area
1.3896471305992E+15
Volume
3.8969120368216E+22
Surface area
5.5585885223966E+15
Circumference
132146966.92051
Perimeter
84127372
Area
442338419976649
Diagonal
29743517.612302
Surface area
2654030519859894
Volume
9.3031922018169E+21
Space diagonal
36428220.652812
Perimeter
63095529
Area
1.9153815438482E+14
Altitude
18214110.326406
Surface area
1.9153815438482E+14
Volume
1.0963917154311E+21
Height
9914505.8707672