20408889 is an odd 8-digits composite number following 20408888
and preceding 20408890 . In scientific notation, it is written as 2.0408889 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 12947088 positive integers (up to 20408889) that are relatively prime to 20408889.
20408889 has 16 divisors, whose sum is 28541952
The reverse of 20408889 is 98880402
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million four hundred eight thousand eight hundred eighty-nine
Scientific notation
2.0408889 × 10^7
Engineering notation
2.0408889 × 10^6
Prime Factorization
3 × 23 × 227 × 1303
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20408889
Product of the distinct prime numbers
The prime factorization of 20408889 is 3 × 23 × 227 × 1303.
Since it has a total of 4 prime factors.
10 , 8 , 31 , 53 , 491 , 742 , 5349 , 9623 , 60517 , 95008 , 206097 , 710645 , 8337472 , 2991749 , 58213773 , 61151318 , 866077669 , 839239250 , 1866009966 , 7099893727
n×2
40817778
n×3
61226667
n×4
81635556
n×5
102044445
n÷2
10204444.5
n÷3
6802963
n÷3
5102222.25
n÷5
4081777.8
n2
416522750214321
n3
8.5007665750988E+21
n4
1.734912014461E+29
n5
3.5407626727901E+36
2 √n
4517.6198379235
3 √n
273.27912253603
4 √n
67.213241537092
5 √n
28.971025789643
1 , 3 , 23 , 69 , 227 , 681 , 1303 , 3909 , 5221 , 15663 , 29969 , 89907 , 295781 , 887343 , 6802963 , 20408889
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
-20408888
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 20408889 can be divided by 16 positive divisors.
The sum of these divisors (counting 20408889) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110110101000111001
3
Ternary
1102101212201210
4
Quaternary
1031312220321
5
Quinary
20211041024
6
Senary
2005233333
8
Octal
115665071
10
Decimal
20408889
12
Duodecimal
6a02849
16
Hexadecimal
1376a39
20
Vigesimal
67b249
36
Base36
c5fll
md5
661d9b37daab49005f196d1e728d5bf2
sha1
b7babcb82beb6bd50b551d34d87d63468697d628
sha256
813c6087e3aaea916bae391e1f8b90a22994a1ef72639f474cce43c55344e79a
sha512
553e54ca411572143d6f5c020cbcfcccb9404db8160451087f047ca483b51a2f9cb8865fb6bbf41956ed50749e4ffc08282c10a3a2ef2c9f8c1686424af53320
ripemd-160
70e0e02abde4dfc14301a54f43805f4f22f793b3
Diameter
40817778
Circumference
128232831.50066
Area
1.3085448121263E+15
Volume
3.5607927762949E+22
Surface area
5.2341792485053E+15
Circumference
128232831.50066
Perimeter
81635556
Area
416522750214321
Diagonal
28862527.616767
Surface area
2499136501285926
Volume
8.5007665750988E+21
Space diagonal
35349232.674034
Perimeter
61226667
Area
1.8035964146988E+14
Altitude
17674616.337017
Surface area
1.8035964146988E+14
Volume
1.0018249484227E+21
Height
9620842.5389224