20081655 is an odd 8-digits composite number following 20081654
and preceding 20081656 . In scientific notation, it is written as 2.0081655 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 9735840 positive integers (up to 20081655) that are relatively prime to 20081655.
20081655 has 16 divisors, whose sum is 25966080
The reverse of 20081655 is 55618002
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million eighty-one thousand six hundred fifty-five
Scientific notation
2.0081655 × 10^7
Engineering notation
2.0081655 × 10^6
Prime Factorization
15 × 9 × 11 × 13523
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20081655
Product of the distinct prime numbers
The prime factorization of 20081655 is 15 × 9 × 11 × 13523.
Since it has a total of 4 prime factors.
2 , 8 , 93 , 7 , 417 , 860 , 4961 , 1288 , 35854 , 80650 , 278219 , 593533 , 5397097 , 9360196 , 33813222 , 7792591 , 997471083 , 887015071 , 9074895169 , 1395686742
n×2
40163310
n×3
60244965
n×4
80326620
n×5
100408275
n÷2
10040827.5
n÷3
6693885
n÷3
5020413.75
n÷5
4016331
n2
403272867539025
n3
8.0983865967794E+21
n4
1.6262900569315E+29
n5
3.2658595853228E+36
2 √n
4481.2559623391
3 √n
271.81066967846
4 √n
66.942183728492
5 √n
28.877520467263
1 , 9 , 11 , 15 , 99 , 135 , 165 , 1485 , 13523 , 121707 , 148753 , 202845 , 1338777 , 1825605 , 2231295 , 20081655
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
-20081654
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 20081655 can be divided by 16 positive divisors.
The sum of these divisors (counting 20081655) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100100110101111110111
3
Ternary
1101210020212000
4
Quaternary
1030212233313
5
Quinary
20120103110
6
Senary
1554230343
8
Octal
114465767
10
Decimal
20081655
12
Duodecimal
68853b3
16
Hexadecimal
1326bf7
20
Vigesimal
65a42f
36
Base36
byf3r
md5
72a5626b2aa6a02c9e8765962e85a01f
sha1
cd51f36b20a65ec34a698b131193f014a9f9cb00
sha256
c0b2b09ca366972817f66ee462e059dd8794fbf332e4f37f9e06c4d1f91946ad
sha512
56202087f6ce2a17235431798dcb593af580a9f20290b3c020149f8ee6bf84f77d322e87035c9ca11dc73901934fa4482308882c16f27e8faf8e6eb69d1c95cf
ripemd-160
06f66f80a76310dba458c89cfbb33441f41feb32
Diameter
40163310
Circumference
126176759.63985
Area
1.2669190780527E+15
Volume
3.3922442451163E+22
Surface area
5.0676763122108E+15
Circumference
126176759.63985
Perimeter
80326620
Area
403272867539025
Diagonal
28399748.855897
Surface area
2419637205234150
Volume
8.0983865967794E+21
Space diagonal
34782446.76007
Perimeter
60244965
Area
1.746222739729E+14
Altitude
17391223.380035
Surface area
1.746222739729E+14
Volume
9.5440401320883E+20
Height
9466582.9519658