20021686 is an even 8-digits composite number following 20021685
and preceding 20021687 . In scientific notation, it is written as 2.0021686 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 10000848 positive integers (up to 20021686) that are relatively prime to 20021686.
20021686 has 8 divisors, whose sum is 30062520
The reverse of 20021686 is 68612002
Previous prime number is 1129
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million twenty-one thousand six hundred eighty-six
Scientific notation
2.0021686 × 10^7
Engineering notation
2.0021686 × 10^6
Prime Factorization
2 × 1129 × 8867
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20021686
Product of the distinct prime numbers
The prime factorization of 20021686 is 2 × 1129 × 8867.
Since it has a total of 3 prime factors.
7 , 6 , 52 , 91 , 429 , 281 , 2945 , 7739 , 16417 , 21336 , 847717 , 107385 , 5076280 , 3331427 , 17196412 , 57563438 , 677290697 , 90660930 , 9532500669 , 4587709911
n×2
40043372
n×3
60065058
n×4
80086744
n×5
100108430
n÷2
10010843
n÷3
6673895.3333333
n÷3
5005421.5
n÷5
4004337.2
n2
400867910282596
n3
8.0260514271543E+21
n4
1.6069508149434E+29
n5
3.217386463424E+36
2 √n
4474.5598666238
3 √n
271.53983432202
4 √n
66.892151009096
5 √n
28.860252684034
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
-20021685
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 20021686 can be divided by 8 positive divisors.
The sum of these divisors (counting 20021686) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100011000000110110110
3
Ternary
1101200012120221
4
Quaternary
1030120012312
5
Quinary
20111143221
6
Senary
1553044554
8
Octal
114300666
10
Decimal
20021686
12
Duodecimal
685675a
16
Hexadecimal
13181b6
20
Vigesimal
652e46
36
Base36
bx4ty
md5
fc0a4752a67265b3d543d6cef7f0dca1
sha1
3ae41383ce74c57c9ea39bd08840fff42d6067d5
sha256
f70a5d6cbb427331639e8808ea99531b23c6f879decf3f1a58d2b7dc33e0135a
sha512
ad388b9c5e6171b2177610416df2fb2188244e6e3872e5d21eec29697a94b6deb06e1b17beeba81992f30b76cd15b899a89469f6828e886bb4495b10bbebefc8
ripemd-160
284d32f810c968cb3fced0705218302a994dfd28
Diameter
40043372
Circumference
125799963.30016
Area
1.2593636820037E+15
Volume
3.3619445601176E+22
Surface area
5.0374547280148E+15
Circumference
125799963.30016
Perimeter
80086744
Area
400867910282596
Diagonal
28314939.882776
Surface area
2405207461695576
Volume
8.0260514271543E+21
Space diagonal
34678577.40519
Perimeter
60065058
Area
1.7358089693335E+14
Altitude
17339288.702595
Surface area
1.7358089693335E+14
Volume
9.4587923171546E+20
Height
9438313.2942585