20081689 is an odd 8-digits composite number following 20081688
and preceding 20081690 . In scientific notation, it is written as 2.0081689 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 18987696 positive integers (up to 20081689) that are relatively prime to 20081689.
20081689 has 8 divisors, whose sum is 21179840
The reverse of 20081689 is 98618002
Previous prime number is 1093
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million eighty-one thousand six hundred eighty-nine
Scientific notation
2.0081689 × 10^7
Engineering notation
2.0081689 × 10^6
Prime Factorization
19 × 1093 × 967
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20081689
Product of the distinct prime numbers
The prime factorization of 20081689 is 19 × 1093 × 967.
Since it has a total of 3 prime factors.
7 , 3 , 41 , 44 , 126 , 950 , 2230 , 6180 , 88262 , 15227 , 761707 , 251522 , 1202742 , 6533513 , 1846252 , 66299010 , 456677261 , 183667894 , 210433644 , 1379887370
n×2
40163378
n×3
60245067
n×4
80326756
n×5
100408445
n÷2
10040844.5
n÷3
6693896.3333333
n÷3
5020422.25
n÷5
4016337.8
n2
403274233092721
n3
8.0984277306815E+21
n4
1.6263010707652E+29
n5
3.2658872323474E+36
2 √n
4481.2597559169
3 √n
271.81082307813
4 √n
66.942212063218
5 √n
28.87753024569
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20081688
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20081689 can be divided by 8 positive divisors.
The sum of these divisors (counting 20081689) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100110110000011001
3
Ternary
1101210020220021
4
Quaternary
1030212300121
5
Quinary
20120103224
6
Senary
1554230441
8
Octal
114466031
10
Decimal
20081689
12
Duodecimal
6885421
16
Hexadecimal
1326c19
20
Vigesimal
65a449
36
Base36
byf4p
md5
2630ea1962c875a6995ae0e3544438e2
sha1
ef40c02212a19aa74e830a6e6af73d47ec9b70fc
sha256
181f8e9ec8709bce55e3ab07cef785019828a65052152d4dda65d2c06aa48c9f
sha512
c8f671e73e4e9570cb5739475de00e7bbe62e861a4b647bddad3f512760d6a183e8f88e292142b1586a37e7ba8d0585d1cff298166198f2ac6456d820473f4cd
ripemd-160
a319a397240a20a71c9064282ae6af79e5def2d3
Diameter
40163378
Circumference
126176973.26815
Area
1.2669233680662E+15
Volume
3.3922614752449E+22
Surface area
5.0676934722646E+15
Circumference
126176973.26815
Perimeter
80326756
Area
403274233092721
Diagonal
28399796.939159
Surface area
2419645398556326
Volume
8.0984277306815E+21
Space diagonal
34782505.649797
Perimeter
60245067
Area
1.7462286527499E+14
Altitude
17391252.824899
Surface area
1.7462286527499E+14
Volume
9.5440886088568E+20
Height
9466598.9797195