20997686 is an even 8-digits composite number following 20997685
and preceding 20997687 . In scientific notation, it is written as 2.0997686 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 9881248 positive integers (up to 20997686) that are relatively prime to 20997686.
20997686 has 8 divisors, whose sum is 33349320
The reverse of 20997686 is 68679902
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred ninety-seven thousand six hundred eighty-six
Scientific notation
2.0997686 × 10^7
Engineering notation
2.0997686 × 10^6
Prime Factorization
2 × 17 × 617579
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20997686
Product of the distinct prime numbers
The prime factorization of 20997686 is 2 × 17 × 617579.
Since it has a total of 3 prime factors.
7 , 6 , 84 , 19 , 299 , 448 , 8265 , 4047 , 45137 , 36190 , 437591 , 631863 , 2414084 , 6371156 , 7383961 , 10376442 , 52422276 , 84701091 , 4087573727 , 1732920600
n×2
41995372
n×3
62993058
n×4
83990744
n×5
104988430
n÷2
10498843
n÷3
6999228.6666667
n÷3
5249421.5
n÷5
4199537.2
n2
440902817354596
n3
9.2579389153272E+21
n4
1.9439529435122E+29
n5
4.0818513506645E+36
2 √n
4582.3232099013
3 √n
275.88228369359
4 √n
67.692859371586
5 √n
29.136292434918
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20997685
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20997686 can be divided by 8 positive divisors.
The sum of these divisors (counting 20997686) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000110011000110110
3
Ternary
1110111210102002
4
Quaternary
1100012120312
5
Quinary
20333411221
6
Senary
2030015302
8
Octal
120063066
10
Decimal
20997686
12
Duodecimal
7047532
16
Hexadecimal
1406636
20
Vigesimal
6b4e46
36
Base36
ci1x2
md5
7f6a726e60840a7eb4a3179dd7b222d5
sha1
43b06f1cdf6f6b0ccfdee6345ec2b95d88f38a1a
sha256
23e71c3b707c928c0de7c6e66b6c9ccd207498ae15fb82fc4ce8478e652185e8
sha512
e3f62f00402f3b9fdf909db4c8d0262b675a58dc8e3db8b773df0e0a5048a618415665a946921ab27e95b738d923a14e3e3b36d240e01df33704eda2b424e939
ripemd-160
dc3c760847e02a071ff32cded7e24f23faed1f91
Diameter
41995372
Circumference
131932352.15997
Area
1.3851370519482E+15
Volume
3.8779563845033E+22
Surface area
5.540548207793E+15
Circumference
131932352.15997
Perimeter
83990744
Area
440902817354596
Diagonal
29695212.319652
Surface area
2645416904127576
Volume
9.2579389153272E+21
Space diagonal
36369058.993378
Perimeter
62993058
Area
1.9091652021461E+14
Altitude
18184529.496689
Surface area
1.9091652021461E+14
Volume
1.0910585644731E+21
Height
9898404.1065506