20710981 is an odd 8-digits composite number following 20710980
and preceding 20710982 . In scientific notation, it is written as 2.0710981 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 19312128 positive integers (up to 20710981) that are relatively prime to 20710981.
20710981 has 8 divisors, whose sum is 22132440
The reverse of 20710981 is 18901702
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred ten thousand nine hundred eighty-one
Scientific notation
2.0710981 × 10^7
Engineering notation
2.0710981 × 10^6
Prime Factorization
17 × 109 × 11177
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20710981
Product of the distinct prime numbers
The prime factorization of 20710981 is 17 × 109 × 11177.
Since it has a total of 3 prime factors.
7 , 3 , 23 , 13 , 300 , 624 , 567 , 8278 , 30250 , 14619 , 541637 , 933198 , 2963042 , 1656714 , 81032178 , 14790607 , 815932182 , 503742829 , 843235452 , 5080064904
n×2
41421962
n×3
62132943
n×4
82843924
n×5
103554905
n÷2
10355490.5
n÷3
6903660.3333333
n÷3
5177745.25
n÷5
4142196.2
n2
428944733982361
n3
8.8838662355587E+21
n4
1.839935848112E+29
n5
3.8106876391466E+36
2 √n
4550.9318825928
3 √n
274.62088143917
4 √n
67.460595035864
5 √n
29.056288170565
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
-20710980
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 20710981 can be divided by 8 positive divisors.
The sum of these divisors (counting 20710981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000000011001000101
3
Ternary
1102222020010101
4
Quaternary
1033000121011
5
Quinary
20300222411
6
Senary
2015524101
8
Octal
117003105
10
Decimal
20710981
12
Duodecimal
6b29631
16
Hexadecimal
13c0645
20
Vigesimal
698h91
36
Base36
cbwp1
md5
91f1212452336945d1c831e26d43a372
sha1
75e187ddc9ec3fefedae5d01c13d58195fe21f74
sha256
7d8444a079ce1221b1a34d557c8574c4d4803bd960cbf0295291f4fd37347449
sha512
283bc3b99072b2cc1e049093b12f238b127399162ac3e8cee075622c85663cb18f01e7ac14b8696364c631f12e3e7075911c211ada9c6c8cb87d306c5ee8f4a6
ripemd-160
ad80be512d7eacb0402d3223c1334ae11d08a52b
Diameter
41421962
Circumference
130130931.51648
Area
1.347569625075E+15
Volume
3.7212651868141E+22
Surface area
5.3902785003001E+15
Circumference
130130931.51648
Perimeter
82843924
Area
428944733982361
Diagonal
29289750.220251
Surface area
2573668403894166
Volume
8.8838662355587E+21
Space diagonal
35872471.366594
Perimeter
62132943
Area
1.8573851822414E+14
Altitude
17936235.683297
Surface area
1.8573851822414E+14
Volume
1.0469736763863E+21
Height
9763250.0734172