20081639 is an odd 8-digits composite number following 20081638
and preceding 20081640 . In scientific notation, it is written as 2.0081639 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19538856 positive integers (up to 20081639) that are relatively prime to 20081639.
20081639 has 4 divisors, whose sum is 20624424
The reverse of 20081639 is 93618002
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eighty-one thousand six hundred thirty-nine
Scientific notation
2.0081639 × 10^7
Engineering notation
2.0081639 × 10^6
Prime Factorization
37 × 542747
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20081639
Product of the distinct prime numbers
The prime factorization of 20081639 is 37 × 542747.
Since it has a total of 2 prime factors.
7 , 10 , 83 , 51 , 650 , 947 , 9927 , 3397 , 28899 , 74588 , 871592 , 45044 , 9798675 , 2246666 , 59928851 , 49497615 , 980999164 , 964976140 , 1632414282 , 3608402952
n×2
40163278
n×3
60244917
n×4
80326556
n×5
100408195
n÷2
10040819.5
n÷3
6693879.6666667
n÷3
5020409.75
n÷5
4016327.8
n2
403272224926321
n3
8.0983672396972E+21
n4
1.6262848739703E+29
n5
3.2658465750231E+36
2 √n
4481.254177125
3 √n
271.81059749033
4 √n
66.94217039449
5 √n
28.877515865645
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
-20081638
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 20081639 can be divided by 4 positive divisors.
The sum of these divisors (counting 20081639) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110101111100111
3
Ternary
1101210020211102
4
Quaternary
1030212233213
5
Quinary
20120103024
6
Senary
1554230315
8
Octal
114465747
10
Decimal
20081639
12
Duodecimal
688539b
16
Hexadecimal
1326be7
20
Vigesimal
65a41j
36
Base36
byf3b
md5
a822fb0996eda599274f9ae4bd7c5529
sha1
d29f6ae9117a0a513f2b8f5769208c1b9196cae5
sha256
54e5a1012fcbc4a6e65bc63178f30cebd09f4b1b4e242cbe00758f908898a695
sha512
bf704ac32ca25cc5022266a887ea48d24e60fa6840da3bcd856b2b2fbdd5b524703b7e4b4f700321232fda80cc9d1faa4e3d6c52fdc47c847276bd1aef9dd254
ripemd-160
b50dbf002fe59c54148e43d212650270f06c97d6
Diameter
40163278
Circumference
126176659.10888
Area
1.2669170592253E+15
Volume
3.3922361368407E+22
Surface area
5.0676682369014E+15
Circumference
126176659.10888
Perimeter
80326556
Area
403272224926321
Diagonal
28399726.22848
Surface area
2419633349557926
Volume
8.0983672396972E+21
Space diagonal
34782419.047257
Perimeter
60244917
Area
1.7462199571343E+14
Altitude
17391209.523628
Surface area
1.7462199571343E+14
Volume
9.5440173195481E+20
Height
9466575.4094935