20390639 is an odd 8-digits prime number following 20390638
and preceding 20390640 . In scientific notation, it is written as 2.0390639 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 20390638 positive integers (up to 20390639) that are relatively prime to 20390639.
20390639 has 2 divisors, whose sum is 20390640
The reverse of 20390639 is 93609302
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million three hundred ninety thousand six hundred thirty-nine
Scientific notation
2.0390639 × 10^7
Engineering notation
2.0390639 × 10^6
Prime Factorization
20390639
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20390639
Product of the distinct prime numbers
The prime factorization of 20390639 is 20390639.
Since it has a total of 1 prime factors.
9 , 8 , 87 , 4 , 706 , 44 , 4027 , 7286 , 42803 , 89222 , 221290 , 648388 , 2155837 , 767641 , 62155449 , 4569984 , 123899168 , 566688871 , 3569619066 , 6112371122
n×2
40781278
n×3
61171917
n×4
81562556
n×5
101953195
n÷2
10195319.5
n÷3
6796879.6666667
n÷3
5097659.75
n÷5
4078127.8
n2
415778158828321
n3
8.477982340753E+21
n4
1.7287147735867E+29
n5
3.5249598882173E+36
2 √n
4515.5995172291
3 √n
273.19764118875
4 √n
67.198210669847
5 √n
28.965842651657
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20390640
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10195320
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4515.5996279564
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999019158
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20390639 can be divided by 2 positive divisors.
The sum of these divisors (counting 20390639) is 20390640, the average is 10195320.
Base
System
Value
2
Binary
1001101110010001011101111
3
Ternary
1102100221200212
4
Quaternary
1031302023233
5
Quinary
20210000024
6
Senary
2005013035
8
Octal
115621357
10
Decimal
20390639
12
Duodecimal
69b417b
16
Hexadecimal
13722ef
20
Vigesimal
678gbj
36
Base36
c51in
md5
c92585ed4c73148ad6cd94c5443e27c4
sha1
a9b3252e91ad88fb24216bc81fd06bacbbfe949a
sha256
978cd15303742f6a74d1b0dc00b620c5d527845daa33224e2eec0a5559fcc2a7
sha512
5182f6654ba3cd8d19849e93c5e964c0ca82c8bc4d59f9286e671e1960b1b0c04bc2ba168bf68f0415467ec204f141d0610931b3f1df7918a64760c382dd95bb
ripemd-160
728736120e455a09b78e2ca6284034863e51dfb4
Diameter
40781278
Circumference
128118163.3688
Area
1.3062056092981E+15
Volume
3.5512489385298E+22
Surface area
5.2248224371926E+15
Circumference
128118163.3688
Perimeter
81562556
Area
415778158828321
Diagonal
28836718.219254
Surface area
2494668952969926
Volume
8.477982340753E+21
Space diagonal
35317622.746795
Perimeter
61171917
Area
1.8003722394202E+14
Altitude
17658811.373398
Surface area
1.8003722394202E+14
Volume
9.9913980065437E+20
Height
9612239.4064179