20239905 is an odd 8-digits composite number following 20239904
and preceding 20239906 . In scientific notation, it is written as 2.0239905 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 9075456 positive integers (up to 20239905) that are relatively prime to 20239905.
20239905 has 16 divisors, whose sum is 25931664
The reverse of 20239905 is 50993202
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million two hundred thirty-nine thousand nine hundred five
Scientific notation
2.0239905 × 10^7
Engineering notation
2.0239905 × 10^6
Prime Factorization
21 × 5 × 53 × 3637
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20239905
Product of the distinct prime numbers
The prime factorization of 20239905 is 21 × 5 × 53 × 3637.
Since it has a total of 4 prime factors.
6 , 9 , 61 , 81 , 765 , 383 , 949 , 7953 , 75693 , 14676 , 73739 , 903718 , 5141288 , 7181125 , 85895587 , 15485468 , 143882277 , 923870542 , 5531510695 , 4354921804
n×2
40479810
n×3
60719715
n×4
80959620
n×5
101199525
n÷2
10119952.5
n÷3
6746635
n÷3
5059976.25
n÷5
4047981
n2
409653754409025
n3
8.291353072132E+21
n4
1.6781619850141E+29
n5
3.3965839151297E+36
2 √n
4498.8781935056
3 √n
272.52278798291
4 √n
67.073677351891
5 √n
28.922890537902
1 , 5 , 21 , 53 , 105 , 265 , 1113 , 3637 , 5565 , 18185 , 76377 , 192761 , 381885 , 963805 , 4047981 , 20239905
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
-20239904
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 20239905 can be divided by 16 positive divisors.
The sum of these divisors (counting 20239905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101001101011000100001
3
Ternary
1102002021221010
4
Quaternary
1031031120201
5
Quinary
20140134110
6
Senary
2001451133
8
Octal
115153041
10
Decimal
20239905
12
Duodecimal
6940aa9
16
Hexadecimal
134d621
20
Vigesimal
669jf5
36
Base36
c1t7l
md5
4fc94c62ed2d721bc28c397e53a1f0f0
sha1
b8cadb2785daacaa569c9ad486af78d54f367f8c
sha256
c27e059e5b9184d2f364bd85f8b1252e86693cc2d1c424a84178fd9af9302dde
sha512
1b0f882daeaf9610e901592df2b0bfe678b194344c321ced27e679a7c00726fc6b39c0cab05b1e56e53f82debccb5064bbe823e1a7de590f17d15149153954ca
ripemd-160
0b2e9c1c0eb554df31e2351f8a1b3ee0eb2eb087
Diameter
40479810
Circumference
127171073.71471
Area
1.2869652253669E+15
Volume
3.4730738532972E+22
Surface area
5.1478609014675E+15
Circumference
127171073.71471
Perimeter
80959620
Area
409653754409025
Diagonal
28623548.152143
Surface area
2457922526454150
Volume
8.291353072132E+21
Space diagonal
35056543.800367
Perimeter
60719715
Area
1.7738527903694E+14
Altitude
17528271.900184
Surface area
1.7738527903694E+14
Volume
9.7714533041941E+20
Height
9541182.717381