20842986 is an even 8-digits composite number following 20842985
and preceding 20842987 . In scientific notation, it is written as 2.0842986 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 6483456 positive integers (up to 20842986) that are relatively prime to 20842986.
20842986 has 16 divisors, whose sum is 32148480
The reverse of 20842986 is 68924802
Previous prime number is 1609
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million eight hundred forty-two thousand nine hundred eighty-six
Scientific notation
2.0842986 × 10^7
Engineering notation
2.0842986 × 10^6
Prime Factorization
2 × 51 × 1609 × 127
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20842986
Product of the distinct prime numbers
The prime factorization of 20842986 is 2 × 51 × 1609 × 127.
Since it has a total of 4 prime factors.
10 , 8 , 43 , 98 , 562 , 76 , 9686 , 6679 , 98393 , 4777 , 951059 , 534607 , 6197225 , 1438187 , 29546754 , 66887005 , 779537370 , 535483053 , 6409848728 , 2123782896
n×2
41685972
n×3
62528958
n×4
83371944
n×5
104214930
n÷2
10421493
n÷3
6947662
n÷3
5210746.5
n÷5
4168597.2
n2
434430065396196
n3
9.054819771032E+21
n4
1.8872948172014E+29
n5
3.9336859452802E+36
2 √n
4565.4119200791
3 √n
275.20309405042
4 √n
67.567831991851
5 √n
29.093233150332
1 , 2 , 51 , 102 , 127 , 254 , 1609 , 3218 , 6477 , 12954 , 82059 , 164118 , 204343 , 408686 , 10421493 , 20842986
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
-20842985
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 20842986 can be divided by 16 positive divisors.
The sum of these divisors (counting 20842986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111100000100111101010
3
Ternary
1110012221012110
4
Quaternary
1033200213222
5
Quinary
20313433421
6
Senary
2022423150
8
Octal
117404752
10
Decimal
20842986
12
Duodecimal
6b91ab6
16
Hexadecimal
13e09ea
20
Vigesimal
6a5796
36
Base36
ceqju
md5
e4d610a272680cabbb648d2db57cc6da
sha1
0d6e762a229333804820b4d3d8fc319ad0b07b70
sha256
1c79f3fdc72c992e054cf4f52bf9471fe485c83f1f8d04429e22ed39bc216e79
sha512
22b6ddb9cbb6a2f2dc6bdaa94183cf04d02e5f4d493b333dac330b8a4f48cdbca5d643abe9055ccdd281c74f70a1ceea0055d6b4ff35120404999b196e238990
ripemd-160
3f2f901505f65d57128c61c20aca8a8c7aa9d77a
Diameter
41685972
Circumference
130960343.39295
Area
1.3648023019472E+15
Volume
3.7928740363005E+22
Surface area
5.4592092077889E+15
Circumference
130960343.39295
Perimeter
83371944
Area
434430065396196
Diagonal
29476433.481553
Surface area
2606580392377176
Volume
9.054819771032E+21
Space diagonal
36101110.733447
Perimeter
62528958
Area
1.8811373640042E+14
Altitude
18050555.366723
Surface area
1.8811373640042E+14
Volume
1.0671207437531E+21
Height
9825477.8271842