21308520 is an even 8-digits composite number following 21308519
and preceding 21308521 . In scientific notation, it is written as 2.1308520 × 10^7.
The sum of its digits is 21. It has a total of 6 prime factors and 32 positive divisors.
There are 5376000 positive integers (up to 21308520) that are relatively prime to 21308520.
21308520 has 32 divisors, whose sum is 41637960
The reverse of 21308520 is 02580312
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million three hundred eight thousand five hundred twenty
Scientific notation
2.1308520 × 10^7
Engineering notation
2.1308520 × 10^6
Prime Factorization
2 × 2 × 2 × 1065 × 61 × 41
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5327130
Product of the distinct prime numbers
The prime factorization of 21308520 is 2 × 2 × 2 × 1065 × 61 × 41.
Since it has a total of 6 prime factors.
2 , 3 , 73 , 23 , 96 , 175 , 2786 , 1951 , 98576 , 80652 , 107147 , 10882 , 9626501 , 5576106 , 39903758 , 64164308 , 984717350 , 921934340 , 9727705080 , 7969058494
n×2
42617040
n×3
63925560
n×4
85234080
n×5
106542600
n÷2
10654260
n÷3
7102840
n÷3
5327130
n÷5
4261704
n2
454053024590400
n3
9.675197955545E+21
n4
2.0616414913969E+29
n5
4.3930528952261E+36
2 √n
4616.1152498611
3 √n
277.23693924586
4 √n
67.941999160027
5 √n
29.222048505355
1 , 2 , 4 , 8 , 41 , 61 , 82 , 122 , 164 , 244 , 328 , 488 , 1065 , 2130 , 2501 , 4260 , 5002 , 8520 , 10004 , 20008 , 43665 , 64965 , 87330 , 129930 , 174660 , 259860 , 349320 , 519720 , 2663565 , 5327130 , 10654260 , 21308520
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21308519
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21308520 can be divided by 32 positive divisors.
The sum of these divisors (counting 21308520) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010001010010010001101000
3
Ternary
1111002120210110
4
Quaternary
1101102101220
5
Quinary
20423333040
6
Senary
2040414320
8
Octal
121222150
10
Decimal
21308520
12
Duodecimal
71773a0
16
Hexadecimal
1452468
20
Vigesimal
6d3b60
36
Base36
coprc
md5
9dd4c2aca4412b09834583a4aea578cb
sha1
b04b75080ea72c4cdc718f529298f7b8e2300a29
sha256
8b7e1177fdc80ed8d084f757c58617c3d2c911be01e9bab9ef2de0050cda5680
sha512
831c62294ea2d89bc4983325d0584a4410c30dced5ee96245827011b1917487f43dd2f1ce95f654edbf76185c9732ee152d27840d40bb71af1ff98c3add876d0
ripemd-160
2f316c3cc4ea8049a3b40d95e60802f245f2fc41
Diameter
42617040
Circumference
133885379.78174
Area
1.4264496463934E+15
Volume
4.0527374425556E+22
Surface area
5.7057985855737E+15
Circumference
133885379.78174
Perimeter
85234080
Area
454053024590400
Diagonal
30134797.978098
Surface area
2724318147542400
Volume
9.675197955545E+21
Space diagonal
36907439.274098
Perimeter
63925560
Area
1.9661072698022E+14
Altitude
18453719.637049
Surface area
1.9661072698022E+14
Volume
1.140233013948E+21
Height
10044932.659366