20408745 is an odd 8-digits composite number following 20408744
and preceding 20408746 . In scientific notation, it is written as 2.0408745 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 9329376 positive integers (up to 20408745) that are relatively prime to 20408745.
20408745 has 16 divisors, whose sum is 31988736
The reverse of 20408745 is 54780402
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million four hundred eight thousand seven hundred forty-five
Scientific notation
2.0408745 × 10^7
Engineering notation
2.0408745 × 10^6
Prime Factorization
3 × 35 × 7 × 27767
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20408745
Product of the distinct prime numbers
The prime factorization of 20408745 is 3 × 35 × 7 × 27767.
Since it has a total of 4 prime factors.
4 , 5 , 11 , 37 , 722 , 551 , 8738 , 959 , 33440 , 14635 , 867420 , 82193 , 7238962 , 1046549 , 91121208 , 43028571 , 743161755 , 564849916 , 1700527864 , 6668606627
n×2
40817490
n×3
61226235
n×4
81634980
n×5
102043725
n÷2
10204372.5
n÷3
6802915
n÷3
5102186.25
n÷5
4081749
n2
416516872475025
n3
8.5005866385403E+21
n4
1.7348630505638E+29
n5
3.5406377608878E+36
2 √n
4517.6039002994
3 √n
273.27847980488
4 √n
67.213122976837
5 √n
28.970984907069
1 , 3 , 7 , 21 , 35 , 105 , 245 , 735 , 27767 , 83301 , 194369 , 583107 , 971845 , 2915535 , 6802915 , 20408745
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
-20408744
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 20408745 can be divided by 16 positive divisors.
The sum of these divisors (counting 20408745) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110110100110101001
3
Ternary
1102101212112110
4
Quaternary
1031312212221
5
Quinary
20211034440
6
Senary
2005232533
8
Octal
115664651
10
Decimal
20408745
12
Duodecimal
6a02749
16
Hexadecimal
13769a9
20
Vigesimal
67b1h5
36
Base36
c5fhl
md5
29d033878d8019e154def14a16fdae16
sha1
eb449175e05ef25a4815b8977319c5bbbd249f8b
sha256
c49a5b733eae1a1156bfde4890103254105a5256f0f1c902411f20dfb165d1b2
sha512
be97e8772d34abc55dc90ba4c99a818e682bb1bef6f16b343179c74d9707261c41510e5c629e786974c8adef726eddfd1241345471e1f2f9d7650bc2d42db638
ripemd-160
f341f5641e1c82263bdcfbe250fb152a5fb744df
Diameter
40817490
Circumference
128231926.72197
Area
1.3085263466637E+15
Volume
3.5607174046456E+22
Surface area
5.2341053866549E+15
Circumference
128231926.72197
Perimeter
81634980
Area
416516872475025
Diagonal
28862323.970014
Surface area
2499101234850150
Volume
8.5005866385403E+21
Space diagonal
35348983.258717
Perimeter
61226235
Area
1.8035709633411E+14
Altitude
17674491.629359
Surface area
1.8035709633411E+14
Volume
1.0018037426959E+21
Height
9620774.6566714