20786949 is an odd 8-digits composite number following 20786948
and preceding 20786950 . In scientific notation, it is written as 2.0786949 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 13731120 positive integers (up to 20786949) that are relatively prime to 20786949.
20786949 has 24 divisors, whose sum is 31423392
The reverse of 20786949 is 94968702
Previous prime number is 653
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million seven hundred eighty-six thousand nine hundred forty-nine
Scientific notation
2.0786949 × 10^7
Engineering notation
2.0786949 × 10^6
Prime Factorization
3 × 27 × 3 × 653 × 131
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6928983
Product of the distinct prime numbers
The prime factorization of 20786949 is 3 × 27 × 3 × 653 × 131.
Since it has a total of 5 prime factors.
9 , 2 , 61 , 82 , 34 , 73 , 3623 , 7065 , 36434 , 54392 , 346699 , 685433 , 2415040 , 438711 , 43591320 , 93667786 , 460930443 , 656523585 , 2154337083 , 3621731420
n×2
41573898
n×3
62360847
n×4
83147796
n×5
103934745
n÷2
10393474.5
n÷3
6928983
n÷3
5196737.25
n÷5
4157389.8
n2
432097248728601
n3
8.9819834723617E+21
n4
1.8670803235883E+29
n5
3.8810903465333E+36
2 √n
4559.2706653587
3 √n
274.95624207343
4 √n
67.522371591634
5 √n
29.07757269188
1 , 3 , 9 , 27 , 81 , 131 , 243 , 393 , 653 , 1179 , 1959 , 3537 , 5877 , 10611 , 17631 , 31833 , 52893 , 85543 , 158679 , 256629 , 769887 , 2309661 , 6928983 , 20786949
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20786948
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20786949 can be divided by 24 positive divisors.
The sum of these divisors (counting 20786949) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111010010111100000101
3
Ternary
1110010002100000
4
Quaternary
1033102330011
5
Quinary
20310140244
6
Senary
2021311513
8
Octal
117227405
10
Decimal
20786949
12
Duodecimal
6b65599
16
Hexadecimal
13d2f05
20
Vigesimal
69i779
36
Base36
cdjb9
md5
78a1dd57b4e3868bad753628136b15f3
sha1
d2a9093a5650b0429749e984fcfe0248bef3c45d
sha256
a2bae3524e14f02ce9d93290c012734b7d4807c1c5295101f49378e3669620d8
sha512
e2d836a7c021bc96bbc28187276ad9da16aa23ef4d1e74ffd7732901f18068c6fd9c6a4a9b07145a6842561a348c97fb2239950339c3bb8931beb46adbc86778
ripemd-160
dd9b60b729fc72a2c2927e0cfd8ea3f5381d7db6
Diameter
41573898
Circumference
130608252.53789
Area
1.3574735422421E+15
Volume
3.7623644388582E+22
Surface area
5.4298941689685E+15
Circumference
130608252.53789
Perimeter
83147796
Area
432097248728601
Diagonal
29397185.196158
Surface area
2592583492371606
Volume
8.9819834723617E+21
Space diagonal
36004051.802343
Perimeter
62360847
Area
1.8710359715217E+14
Altitude
18002025.901172
Surface area
1.8710359715217E+14
Volume
1.0585369036354E+21
Height
9799061.7320526