20396945 is an odd 8-digits composite number following 20396944
and preceding 20396946 . In scientific notation, it is written as 2.0396945 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 16280320 positive integers (up to 20396945) that are relatively prime to 20396945.
20396945 has 8 divisors, whose sum is 24532200
The reverse of 20396945 is 54969302
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million three hundred ninety-six thousand nine hundred forty-five
Scientific notation
2.0396945 × 10^7
Engineering notation
2.0396945 × 10^6
Prime Factorization
5 × 461 × 8849
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20396945
Product of the distinct prime numbers
The prime factorization of 20396945 is 5 × 461 × 8849.
Since it has a total of 3 prime factors.
1 , 8 , 94 , 28 , 42 , 837 , 2591 , 569 , 49429 , 63207 , 839720 , 422119 , 7944120 , 372387 , 89722254 , 80324903 , 390312513 , 515187027 , 1636463745 , 6788496862
n×2
40793890
n×3
61190835
n×4
81587780
n×5
101984725
n÷2
10198472.5
n÷3
6798981.6666667
n÷3
5099236.25
n÷5
4079389
n2
416035365333025
n3
8.4858504647526E+21
n4
1.7308542520778E+29
n5
3.5304138982648E+36
2 √n
4516.2977094076
3 √n
273.22580127993
4 √n
67.203405489659
5 √n
28.96763402281
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
-20396944
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 20396945 can be divided by 8 positive divisors.
The sum of these divisors (counting 20396945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110011101110010001
3
Ternary
1102101021100102
4
Quaternary
1031303232101
5
Quinary
20210200240
6
Senary
2005102145
8
Octal
115635621
10
Decimal
20396945
12
Duodecimal
69b7955
16
Hexadecimal
1373b91
20
Vigesimal
679c75
36
Base36
c56dt
md5
d9079c46f9d6af8f2f72d1f9c52690fd
sha1
12d81f3c36e2c9e512e1bfeea66bf2198a2ca529
sha256
055b4ca0fbb7562713c8a4df52651ad1d94dbd72cbaa2463e2c7a138a202418d
sha512
f37cda07e48cbaa94a770f21fdc7ff1e27a17849ef3a196ab1feffa446fe191e21308ef6f97bf861c53e3e9a23a3ccb770f9a8b812b125608bd97c59db375898
ripemd-160
8dda9cb83390893d1ce249b48ed4981e99875fa7
Diameter
40793890
Circumference
128157785.13535
Area
1.3070136473638E+15
Volume
3.5545447306038E+22
Surface area
5.2280545894551E+15
Circumference
128157785.13535
Perimeter
81587780
Area
416035365333025
Diagonal
28845636.249978
Surface area
2496212191998150
Volume
8.4858504647526E+21
Space diagonal
35328545.059188
Perimeter
61190835
Area
1.8014859762557E+14
Altitude
17664272.529594
Surface area
1.8014859762557E+14
Volume
1.0000670679603E+21
Height
9615212.083326