20407845 is an odd 8-digits composite number following 20407844
and preceding 20407846 . In scientific notation, it is written as 2.0407845 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 10833600 positive integers (up to 20407845) that are relatively prime to 20407845.
20407845 has 8 divisors, whose sum is 21869568
The reverse of 20407845 is 54870402
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million four hundred seven thousand eight hundred forty-five
Scientific notation
2.0407845 × 10^7
Engineering notation
2.0407845 × 10^6
Prime Factorization
15 × 223 × 6101
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20407845
Product of the distinct prime numbers
The prime factorization of 20407845 is 15 × 223 × 6101.
Since it has a total of 3 prime factors.
7 , 5 , 93 , 71 , 561 , 409 , 4608 , 6629 , 38660 , 55748 , 525937 , 969547 , 4944065 , 3429582 , 48453486 , 37366404 , 921422670 , 186022906 , 9951257466 , 836238818
n×2
40815690
n×3
61223535
n×4
81631380
n×5
102039225
n÷2
10203922.5
n÷3
6802615
n÷3
5101961.25
n÷5
4081569
n2
416480137544025
n3
8.4994620925771E+21
n4
1.7345570496869E+29
n5
3.5398571413668E+36
2 √n
4517.5042888746
3 √n
273.27446266668
4 √n
67.212381961024
5 √n
28.970729385759
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
-20407844
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 20407845 can be divided by 8 positive divisors.
The sum of these divisors (counting 20407845) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110011000100101
3
Ternary
1102101211022010
4
Quaternary
1031312120211
5
Quinary
20211022340
6
Senary
2005224433
8
Octal
115663045
10
Decimal
20407845
12
Duodecimal
6a02119
16
Hexadecimal
1376625
20
Vigesimal
67ajc5
36
Base36
c5esl
md5
5e874492025bdeb5353c9aa33dbcee7a
sha1
981de66441fef26065cd6553c36ab2df28d9195b
sha256
3557e5355fe7ef5a72ee319260f92e16608d6e651cd1bb04338e446fe76aee44
sha512
45a8243f6ec0991ea34a6d23aec20df9a1ea70d038781173c2fba871a5d351aeeca47b8852ecbbbfe69043bdf2ff3f8e209c0f4cc186f8ee505e7668cdadd32a
ripemd-160
717828c353aa106b45a4d227825281d6e39541df
Diameter
40815690
Circumference
128226271.8552
Area
1.3084109404744E+15
Volume
3.560246355934E+22
Surface area
5.2336437618975E+15
Circumference
128226271.8552
Perimeter
81631380
Area
416480137544025
Diagonal
28861051.177808
Surface area
2498880825264150
Volume
8.4994620925771E+21
Space diagonal
35347424.41299
Perimeter
61223535
Area
1.8034118964238E+14
Altitude
17673712.206495
Surface area
1.8034118964238E+14
Volume
1.0016712136832E+21
Height
9620350.3926027