21030145 is an odd 8-digits composite number following 21030144
and preceding 21030146 . In scientific notation, it is written as 2.1030145 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 16824112 positive integers (up to 21030145) that are relatively prime to 21030145.
21030145 has 4 divisors, whose sum is 25236180
The reverse of 21030145 is 54103012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million thirty thousand one hundred forty-five
Scientific notation
2.1030145 × 10^7
Engineering notation
2.1030145 × 10^6
Prime Factorization
5 × 4206029
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21030145
Product of the distinct prime numbers
The prime factorization of 21030145 is 5 × 4206029.
Since it has a total of 2 prime factors.
4 , 8 , 52 , 45 , 101 , 984 , 6779 , 7908 , 44121 , 47636 , 821851 , 595751 , 3839379 , 6845247 , 86910488 , 14179655 , 997853557 , 984289181 , 4560767942 , 8196693744
n×2
42060290
n×3
63090435
n×4
84120580
n×5
105150725
n÷2
10515072.5
n÷3
7010048.3333333
n÷3
5257536.25
n÷5
4206029
n2
442266998721025
n3
9.300939111818E+21
n4
1.956000981577E+29
n5
4.1134984262707E+36
2 √n
4585.8636046006
3 √n
276.0243668538
4 √n
67.719004751994
5 √n
29.14529486192
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
-21030144
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 21030145 can be divided by 4 positive divisors.
The sum of these divisors (counting 21030145) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110010100000001
3
Ternary
1110120102221021
4
Quaternary
1100032110001
5
Quinary
20340431040
6
Senary
2030425441
8
Octal
120162401
10
Decimal
21030145
12
Duodecimal
7062281
16
Hexadecimal
140e501
20
Vigesimal
6b8f75
36
Base36
ciqyp
md5
c537ef9411d93f81701a53825d57ef38
sha1
5ae477ca829003e7ad92e3d6ce79777e9744c2fc
sha256
5e6887c335af83016ee971b3d8b9e3889cb3467e2f2580fa0ee41b645c1fbff7
sha512
f590a5eb1bea4ad587282709159a388d66c6dc26b1b6d21cf0a9d7bea3cf7a16cfab6142a43d57a39550648b087a9111bab22baefc85a4a0db3179992bcc1495
ripemd-160
538a4c169f8b796f429ab76524db167d99a8227d
Diameter
42060290
Circumference
132136298.07186
Area
1.3894227541072E+15
Volume
3.8959682646898E+22
Surface area
5.5576910164287E+15
Circumference
132136298.07186
Perimeter
84120580
Area
442266998721025
Diagonal
29741116.277673
Surface area
2653601992326150
Volume
9.300939111818E+21
Space diagonal
36425279.630541
Perimeter
63090435
Area
1.9150722807395E+14
Altitude
18212639.81527
Surface area
1.9150722807395E+14
Volume
1.0961261862283E+21
Height
9913705.4258909