21138047 is an odd 8-digits composite number following 21138046
and preceding 21138048 . In scientific notation, it is written as 2.1138047 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 18118320 positive integers (up to 21138047) that are relatively prime to 21138047.
21138047 has 4 divisors, whose sum is 24157776
The reverse of 21138047 is 74083112
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred thirty-eight thousand forty-seven
Scientific notation
2.1138047 × 10^7
Engineering notation
2.1138047 × 10^6
Prime Factorization
7 × 3019721
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21138047
Product of the distinct prime numbers
The prime factorization of 21138047 is 7 × 3019721.
Since it has a total of 2 prime factors.
2 , 2 , 41 , 10 , 615 , 183 , 1567 , 765 , 83109 , 11374 , 120512 , 349159 , 2126531 , 3996851 , 75275001 , 52020842 , 895794039 , 188872892 , 3261795466 , 5024023767
n×2
42276094
n×3
63414141
n×4
84552188
n×5
105690235
n÷2
10569023.5
n÷3
7046015.6666667
n÷3
5284511.75
n÷5
4227609.4
n2
446817030974209
n3
9.4448394011333E+21
n4
1.9964545916861E+29
n5
4.2201150992426E+36
2 √n
4597.6131851212
3 √n
276.4956393663
4 √n
67.805701715425
5 √n
29.175141552598
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
-21138046
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 21138047 can be divided by 4 positive divisors.
The sum of these divisors (counting 21138047) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101000101001111111
3
Ternary
1110202220221122
4
Quaternary
1100220221333
5
Quinary
20402404142
6
Senary
2033021155
8
Octal
120505177
10
Decimal
21138047
12
Duodecimal
70b47bb
16
Hexadecimal
1428a7f
20
Vigesimal
6c2527
36
Base36
cl27z
md5
6e458283aac93c4a2dc686f620f82081
sha1
b9494b23055c29576a95cafd71faa55954fed524
sha256
927cc7332b230314e7381eab5088ea2f09266bc6f1f2aa8b795ccf7b50cb7cc3
sha512
3613fe5ee48e0f7ec1dd95a373ad7704e6c8d447cdc0de0501b0a2ac5c762f7c5d4b5260cdea973ce7b7e2a263c3ecef07c2ba130210660a5cb9abedeb7daae0
ripemd-160
6b2ec5683440e24865a3c6563598f0266abdf867
Diameter
42276094
Circumference
132814266.33287
Area
1.4037171020074E+15
Volume
3.9562450769248E+22
Surface area
5.6148684080295E+15
Circumference
132814266.33287
Perimeter
84552188
Area
446817030974209
Diagonal
29893712.74948
Surface area
2680902185845254
Volume
9.4448394011333E+21
Space diagonal
36612171.376779
Perimeter
63414141
Area
1.934774498336E+14
Altitude
18306085.688389
Surface area
1.934774498336E+14
Volume
1.1130849979599E+21
Height
9964570.9164933