20081690 is an even 8-digits composite number following 20081689
and preceding 20081691 . In scientific notation, it is written as 2.0081690 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 7861584 positive integers (up to 20081690) that are relatively prime to 20081690.
20081690 has 16 divisors, whose sum is 36916992
The reverse of 20081690 is 09618002
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million eighty-one thousand six hundred ninety
Scientific notation
2.0081690 × 10^7
Engineering notation
2.0081690 × 10^6
Prime Factorization
2 × 5 × 47 × 42727
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20081690
Product of the distinct prime numbers
The prime factorization of 20081690 is 2 × 5 × 47 × 42727.
Since it has a total of 4 prime factors.
7 , 3 , 41 , 59 , 388 , 803 , 4064 , 1300 , 57915 , 7125 , 31157 , 82515 , 9003278 , 1721940 , 29101807 , 74764404 , 312237108 , 698886623 , 3271420460 , 2173762904
n×2
40163380
n×3
60245070
n×4
80326760
n×5
100408450
n÷2
10040845
n÷3
6693896.6666667
n÷3
5020422.5
n÷5
4016338
n2
403274273256100
n3
8.0984289405043E+21
n4
1.6263013947024E+29
n5
3.265888045498E+36
2 √n
4481.2598674926
3 √n
271.81082758988
4 √n
66.942212896592
5 √n
28.877530533291
1 , 2 , 5 , 10 , 47 , 94 , 235 , 470 , 42727 , 85454 , 213635 , 427270 , 2008169 , 4016338 , 10040845 , 20081690
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
-20081689
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 20081690 can be divided by 16 positive divisors.
The sum of these divisors (counting 20081690) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100100110110000011010
3
Ternary
1101210020220022
4
Quaternary
1030212300122
5
Quinary
20120103230
6
Senary
1554230442
8
Octal
114466032
10
Decimal
20081690
12
Duodecimal
6885422
16
Hexadecimal
1326c1a
20
Vigesimal
65a44a
36
Base36
byf4q
md5
41564571422688ac44048ff6f48c48e2
sha1
40d23a5c808705ecbad229edfe1362f1d1a14f90
sha256
2a5f7852be710d833a871aba93670a8ad4b1aef0ae3cfb7cccf30ce9d13cee55
sha512
7dac46129a8d5a74ab1efb33946bda0d415beb8418d5fa2e8ffbe13d0ce007349044330b6d6f2037d103cf31bf1dc979ca81c7a2780e7b29ca3fdeaf47988aaf
ripemd-160
1984489e1ea6bfe8d9d16c9ff0de2c4a67fb6ead
Diameter
40163380
Circumference
126176979.55134
Area
1.2669234942431E+15
Volume
3.3922619820143E+22
Surface area
5.0676939769725E+15
Circumference
126176979.55134
Perimeter
80326760
Area
403274273256100
Diagonal
28399798.353372
Surface area
2419645639536600
Volume
8.0984289405043E+21
Space diagonal
34782507.381848
Perimeter
60245070
Area
1.7462288266624E+14
Altitude
17391253.690924
Surface area
1.7462288266624E+14
Volume
9.5440900346466E+20
Height
9466599.4511241