20680081 is an odd 8-digits composite number following 20680080
and preceding 20680082 . In scientific notation, it is written as 2.0680081 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20670064 positive integers (up to 20680081) that are relatively prime to 20680081.
20680081 has 4 divisors, whose sum is 20690100
The reverse of 20680081 is 18008602
Previous prime number is 2909
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million six hundred eighty thousand eighty-one
Scientific notation
2.0680081 × 10^7
Engineering notation
2.0680081 × 10^6
Prime Factorization
2909 × 7109
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20680081
Product of the distinct prime numbers
The prime factorization of 20680081 is 2909 × 7109.
Since it has a total of 2 prime factors.
1 , 7 , 46 , 54 , 10 , 991 , 3446 , 153 , 24321 , 98046 , 139799 , 429964 , 5723018 , 1338870 , 29559188 , 89560530 , 478427606 , 618539465 , 8976314524 , 7792919677
n×2
41360162
n×3
62040243
n×4
82720324
n×5
103400405
n÷2
10340040.5
n÷3
6893360.3333333
n÷3
5170020.25
n÷5
4136016.2
n2
427665750166561
n3
8.8441623543702E+21
n4
1.8289799386553E+29
n5
3.7823453278766E+36
2 √n
4547.5357062919
3 √n
274.4842388067
4 √n
67.435418781913
5 √n
29.047612815192
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20680080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20680081 can be divided by 4 positive divisors.
The sum of these divisors (counting 20680081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111000110110010001
3
Ternary
1102220122201221
4
Quaternary
1032320312101
5
Quinary
20243230311
6
Senary
2015125041
8
Octal
116706621
10
Decimal
20680081
12
Duodecimal
6b13781
16
Hexadecimal
13b8d91
20
Vigesimal
695041
36
Base36
cb8up
md5
75768d7470b5492045bf3af0384f0cf0
sha1
6d8a053ecf100fd8b5840ccbd402be72a8829762
sha256
07d1091ad95496238c3dcfcf4cd23b93d1759b6b3d85dfa874045c116311ea4e
sha512
273dd5560a160d968b0025841c15a079859018bffd75ab8a508c6ff10fc0f2c90c0a157910e5d5a1d6ea7672fdc89a7b935e74f7e3ebbcdff556a4e3fee3b8a4
ripemd-160
9e04d10d1cb9ac0d6eb276cadf22d1d8b21d29df
Diameter
41360162
Circumference
129936781.09048
Area
1.3435515789152E+15
Volume
3.7046340639527E+22
Surface area
5.3742063156609E+15
Circumference
129936781.09048
Perimeter
82720324
Area
427665750166561
Diagonal
29246051.021174
Surface area
2565994500999366
Volume
8.8441623543702E+21
Space diagonal
35818950.99664
Perimeter
62040243
Area
1.8518470198639E+14
Altitude
17909475.49832
Surface area
1.8518470198639E+14
Volume
1.042294529115E+21
Height
9748683.6737247