20081390 is an even 8-digits composite number following 20081389
and preceding 20081391 . In scientific notation, it is written as 2.0081390 × 10^7.
The sum of its digits is 23. It has a total of 5 prime factors and 32 positive divisors.
There are 6716160 positive integers (up to 20081390) that are relatively prime to 20081390.
20081390 has 32 divisors, whose sum is 42323904
The reverse of 20081390 is 09318002
Previous prime number is 41
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million eighty-one thousand three hundred ninety
Scientific notation
2.0081390 × 10^7
Engineering notation
2.0081390 × 10^6
Prime Factorization
2 × 5 × 7 × 41 × 6997
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20081390
Product of the distinct prime numbers
The prime factorization of 20081390 is 2 × 5 × 7 × 41 × 6997.
Since it has a total of 5 prime factors.
9 , 1 , 1 , 49 , 512 , 446 , 7425 , 9539 , 36515 , 78072 , 476078 , 646569 , 4208347 , 937096 , 17818845 , 62756967 , 745467783 , 297930660 , 8301727610 , 5441675012
n×2
40162780
n×3
60244170
n×4
80325560
n×5
100406950
n÷2
10040695
n÷3
6693796.6666667
n÷3
5020347.5
n÷5
4016278
n2
403262224332100
n3
8.0980659990804E+21
n4
1.6262042157327E+29
n5
3.2656441075773E+36
2 √n
4481.226394638
3 √n
271.80947405748
4 √n
66.941962883067
5 √n
28.877444252595
1 , 2 , 5 , 7 , 10 , 14 , 35 , 41 , 70 , 82 , 205 , 287 , 410 , 574 , 1435 , 2870 , 6997 , 13994 , 34985 , 48979 , 69970 , 97958 , 244895 , 286877 , 489790 , 573754 , 1434385 , 2008139 , 2868770 , 4016278 , 10040695 , 20081390
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20081389
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20081390 can be divided by 32 positive divisors.
The sum of these divisors (counting 20081390) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100100110101011101110
3
Ternary
1101210020111012
4
Quaternary
1030212223232
5
Quinary
20120101030
6
Senary
1554225222
8
Octal
114465356
10
Decimal
20081390
12
Duodecimal
6885212
16
Hexadecimal
1326aee
20
Vigesimal
65a39a
36
Base36
byewe
md5
00f8309bec5671e4335e92ac912b8786
sha1
24870ef467af2bd9dcca6f23abf68d5d86c50aba
sha256
9c99b8236befa6919ee04d78a01a8442c668163f089ee269593800da9f734599
sha512
6093f7e591ff70f80c783a6cda4b2279ac41a32991a1996afcf9df59778b93dca35ad3bf3d6b1b5530525efb5aa4d49d60eeffcf2958535fbc23f906b04633c4
ripemd-160
ad2ab9dc0f44989029e2c61181ad478f29c4997d
Diameter
40162780
Circumference
126175094.59574
Area
1.266885641432E+15
Volume
3.3921099534662E+22
Surface area
5.067542565728E+15
Circumference
126175094.59574
Perimeter
80325560
Area
403262224332100
Diagonal
28399374.089303
Surface area
2419573345992600
Volume
8.0980659990804E+21
Space diagonal
34781987.766606
Perimeter
60244170
Area
1.7461766532911E+14
Altitude
17390993.883303
Surface area
1.7461766532911E+14
Volume
9.5436623040766E+20
Height
9466458.0297678