20438081 is an odd 8-digits composite number following 20438080
and preceding 20438082 . In scientific notation, it is written as 2.0438081 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20312532 positive integers (up to 20438081) that are relatively prime to 20438081.
20438081 has 4 divisors, whose sum is 20563632
The reverse of 20438081 is 18083402
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million four hundred thirty-eight thousand eighty-one
Scientific notation
2.0438081 × 10^7
Engineering notation
2.0438081 × 10^6
Prime Factorization
163 × 125387
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20438081
Product of the distinct prime numbers
The prime factorization of 20438081 is 163 × 125387.
Since it has a total of 2 prime factors.
10 , 2 , 92 , 45 , 742 , 782 , 8034 , 8781 , 79663 , 17411 , 44351 , 437839 , 6670892 , 7093713 , 30955909 , 74602004 , 615408794 , 712184318 , 5706072633 , 1334924136
n×2
40876162
n×3
61314243
n×4
81752324
n×5
102190405
n÷2
10219040.5
n÷3
6812693.6666667
n÷3
5109520.25
n÷5
4087616.2
n2
417715154962561
n3
8.5372961720524E+21
n4
1.744859506854E+29
n5
3.5661579934701E+36
2 √n
4520.8495882964
3 √n
273.40935604321
4 √n
67.237263390894
5 √n
28.979308834602
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20438080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20438081 can be divided by 4 positive divisors.
The sum of these divisors (counting 20438081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111101110001000001
3
Ternary
1102110100202222
4
Quaternary
1031331301001
5
Quinary
20213004311
6
Senary
2010020425
8
Octal
115756101
10
Decimal
20438081
12
Duodecimal
6a17715
16
Hexadecimal
137dc41
20
Vigesimal
67ef41
36
Base36
c624h
md5
da70917ee96310f9daa7be858aa6e546
sha1
b5e1720c17cf2823f52527addfcf8588b3ba7b33
sha256
c0e9dbe8e9540c11b06b0235f25450f5ba224104809a9fca26d654e3f37adcbe
sha512
961094981dab733c46ba4f6fe9c40068d07f328b7bf10e0eaab50f0e8ee70e073b25b9db4d2d2d1497aa2a95b2447f4499638ff272a8e46499dbfd1891f9588f
ripemd-160
e4a9bb9edf9179cdc139da92a464d0a226167af8
Diameter
40876162
Circumference
128416250.24615
Area
1.3122908621235E+15
Volume
3.5760942580853E+22
Surface area
5.249163448494E+15
Circumference
128416250.24615
Perimeter
81752324
Area
417715154962561
Diagonal
28903811.33908
Surface area
2506290929775366
Volume
8.5372961720524E+21
Space diagonal
35399794.701208
Perimeter
61314243
Area
1.8087596787167E+14
Altitude
17699897.350604
Surface area
1.8087596787167E+14
Volume
1.0061300027094E+21
Height
9634603.7796933