20781006 is an even 8-digits composite number following 20781005
and preceding 20781007 . In scientific notation, it is written as 2.0781006 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 6625784 positive integers (up to 20781006) that are relatively prime to 20781006.
20781006 has 16 divisors, whose sum is 43369344
The reverse of 20781006 is 60018702
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million seven hundred eighty-one thousand six
Scientific notation
2.0781006 × 10^7
Engineering notation
2.0781006 × 10^6
Prime Factorization
2 × 3 × 23 × 150587
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20781006
Product of the distinct prime numbers
The prime factorization of 20781006 is 2 × 3 × 23 × 150587.
Since it has a total of 4 prime factors.
9 , 10 , 23 , 78 , 118 , 799 , 2319 , 9029 , 17326 , 6569 , 387974 , 566285 , 652015 , 6973865 , 38655685 , 18203698 , 316396177 , 700694777 , 4169080541 , 6420706867
n×2
41562012
n×3
62343018
n×4
83124024
n×5
103905030
n÷2
10390503
n÷3
6927002
n÷3
5195251.5
n÷5
4156201.2
n2
431850210372036
n3
8.9742818128425E+21
n4
1.8649460419837E+29
n5
3.875545488814E+36
2 √n
4558.6188697894
3 √n
274.93003619624
4 √n
67.51754490345
5 √n
29.075909842943
1 , 2 , 3 , 6 , 23 , 46 , 69 , 138 , 150587 , 301174 , 451761 , 903522 , 3463501 , 6927002 , 10390503 , 20781006
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
-20781005
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 20781006 can be divided by 16 positive divisors.
The sum of these divisors (counting 20781006) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010001011111001110
3
Ternary
1110002210011220
4
Quaternary
1033101133032
5
Quinary
20304443011
6
Senary
2021224210
8
Octal
117213716
10
Decimal
20781006
12
Duodecimal
6b62066
16
Hexadecimal
13d17ce
20
Vigesimal
69hca6
36
Base36
cdeq6
md5
91d622378a240aa637d268e10b5600a6
sha1
1d17f3290a8dae2f3e45d7c00d482cc8a15d4d1d
sha256
71f704f563002fba779ffaeb545e9d20a523bdaaba928d951abe08cdf872eb2f
sha512
78943d2f589e6ee39538f7ef602a807aae178cefcfb87bad10ab86e6d4159122a17eb6661b301318e72a645a125513826fb0a070207f3f5853d3f864cbc6923a
ripemd-160
628cbdf422ee7f9c8eeb0d436a8a612e70a049a6
Diameter
41562012
Circumference
130570911.56761
Area
1.356697448356E+15
Volume
3.7591383752627E+22
Surface area
5.426789793424E+15
Circumference
130570911.56761
Perimeter
83124024
Area
431850210372036
Diagonal
29388780.524957
Surface area
2591101262232216
Volume
8.9742818128425E+21
Space diagonal
35993758.224394
Perimeter
62343018
Area
1.8699662640592E+14
Altitude
17996879.112197
Surface area
1.8699662640592E+14
Volume
1.0576292543567E+21
Height
9796260.1749856