21086810 is an even 8-digits composite number following 21086809
and preceding 21086811 . In scientific notation, it is written as 2.1086810 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 8406528 positive integers (up to 21086810) that are relatively prime to 21086810.
21086810 has 16 divisors, whose sum is 38083176
The reverse of 21086810 is 01868012
Previous prime number is 313
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million eighty-six thousand eight hundred ten
Scientific notation
2.1086810 × 10^7
Engineering notation
2.1086810 × 10^6
Prime Factorization
2 × 5 × 313 × 6737
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21086810
Product of the distinct prime numbers
The prime factorization of 21086810 is 2 × 5 × 313 × 6737.
Since it has a total of 4 prime factors.
2 , 1 , 50 , 4 , 819 , 472 , 5924 , 2068 , 51474 , 25318 , 780480 , 348673 , 1079167 , 1406720 , 95948045 , 75284612 , 46809805 , 686081362 , 7416366915 , 6846053532
n×2
42173620
n×3
63260430
n×4
84347240
n×5
105434050
n÷2
10543405
n÷3
7028936.6666667
n÷3
5271702.5
n÷5
4217362
n2
444653555976100
n3
9.3763250506924E+21
n4
1.9771678484219E+29
n5
4.1692162757782E+36
2 √n
4592.0376740615
3 √n
276.27205723294
4 √n
67.764575362511
5 √n
29.160984159566
1 , 2 , 5 , 10 , 313 , 626 , 1565 , 3130 , 6737 , 13474 , 33685 , 67370 , 2108681 , 4217362 , 10543405 , 21086810
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
-21086809
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 21086810 can be divided by 16 positive divisors.
The sum of these divisors (counting 21086810) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011100001001011010
3
Ternary
1110200022122222
4
Quaternary
1100130021122
5
Quinary
20344234220
6
Senary
2031544042
8
Octal
120341132
10
Decimal
21086810
12
Duodecimal
708b022
16
Hexadecimal
141c25a
20
Vigesimal
6bfh0a
36
Base36
cjyoq
md5
96edeb4d01cdfa17ff644971b49dfbc6
sha1
bc881e5225fa9c31283f030ac20adcc4a90d4335
sha256
945e7bbcd68320c8d60b4092943084fa1df332dae26275bc05d5e7bc616f2d52
sha512
af98c078c2a7b804fc4a9613ebb8bd1e03703e35544b46afd449c49f48c463e29df0769def47d120a271ad69d4cf5caa1c5e33ff958b12f06c268da373080e51
ripemd-160
1cf4037dd94d060bbaab6545e8c1599af9fefcde
Diameter
42173620
Circumference
132492334.76729
Area
1.3969203448471E+15
Volume
3.9275458529234E+22
Surface area
5.5876813793884E+15
Circumference
132492334.76729
Perimeter
84347240
Area
444653555976100
Diagonal
29821252.689185
Surface area
2667921335856600
Volume
9.3763250506924E+21
Space diagonal
36523426.289551
Perimeter
63260430
Area
1.9254063767919E+14
Altitude
18261713.144776
Surface area
1.9254063767919E+14
Volume
1.1050105043256E+21
Height
9940417.5630615