21082810 is an even 8-digits composite number following 21082809
and preceding 21082811 . In scientific notation, it is written as 2.1082810 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 7228368 positive integers (up to 21082810) that are relatively prime to 21082810.
21082810 has 16 divisors, whose sum is 43370496
The reverse of 21082810 is 01828012
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million eighty-two thousand eight hundred ten
Scientific notation
2.1082810 × 10^7
Engineering notation
2.1082810 × 10^6
Prime Factorization
2 × 5 × 7 × 301183
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21082810
Product of the distinct prime numbers
The prime factorization of 21082810 is 2 × 5 × 7 × 301183.
Since it has a total of 4 prime factors.
8 , 7 , 7 , 72 , 102 , 827 , 2932 , 8535 , 29969 , 58715 , 110719 , 800255 , 497911 , 9908288 , 80824698 , 35771633 , 819835749 , 994877568 , 9503394822 , 5813173616
n×2
42165620
n×3
63248430
n×4
84331240
n×5
105414050
n÷2
10541405
n÷3
7027603.3333333
n÷3
5270702.5
n÷5
4216562
n2
444484877496100
n3
9.3709902201236E+21
n4
1.9756680632272E+29
n5
4.1652634400088E+36
2 √n
4591.6021169087
3 √n
276.25458725824
4 √n
67.761361533758
5 √n
29.159877754299
1 , 2 , 5 , 7 , 10 , 14 , 35 , 70 , 301183 , 602366 , 1505915 , 2108281 , 3011830 , 4216562 , 10541405 , 21082810
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21082809
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21082810 can be divided by 16 positive divisors.
The sum of these divisors (counting 21082810) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011011001010111010
3
Ternary
1110200010011211
4
Quaternary
1100123022322
5
Quinary
20344122220
6
Senary
2031513334
8
Octal
120331272
10
Decimal
21082810
12
Duodecimal
708884a
16
Hexadecimal
141b2ba
20
Vigesimal
6bf70a
36
Base36
cjvlm
md5
857794b12c783a4fb90f4f3b9322530c
sha1
d66d70c50ac5cf728a955c99c2db968a93b08832
sha256
9333ab7d1d9df84fe426185a9b5047a205cd07f8e2fbb68d7fd135842175576d
sha512
77e08c44bd4a9bb1813271f408928540edbd41e289605ef3eda651b4234a0b26e6ad7f5d68db5c1f069d2ec61fd7f84198ad33ff1e736b17125ee20ddaf35902
ripemd-160
443363ae548adcc70222052fe5ba1d8418156d53
Diameter
42165620
Circumference
132467202.02606
Area
1.3963904257735E+15
Volume
3.9253112043203E+22
Surface area
5.585561703094E+15
Circumference
132467202.02606
Perimeter
84331240
Area
444484877496100
Diagonal
29815595.834935
Surface area
2666909264976600
Volume
9.3709902201236E+21
Space diagonal
36516498.086321
Perimeter
63248430
Area
1.9246759775482E+14
Altitude
18258249.043161
Surface area
1.9246759775482E+14
Volume
1.1043817885137E+21
Height
9938531.9449784