20208985 is an odd 8-digits composite number following 20208984
and preceding 20208986 . In scientific notation, it is written as 2.0208985 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 16147584 positive integers (up to 20208985) that are relatively prime to 20208985.
20208985 has 8 divisors, whose sum is 24280200
The reverse of 20208985 is 58980202
Previous prime number is 3853
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million two hundred eight thousand nine hundred eighty-five
Scientific notation
2.0208985 × 10^7
Engineering notation
2.0208985 × 10^6
Prime Factorization
5 × 3853 × 1049
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20208985
Product of the distinct prime numbers
The prime factorization of 20208985 is 5 × 3853 × 1049.
Since it has a total of 3 prime factors.
7 , 9 , 78 , 62 , 133 , 470 , 5255 , 1171 , 89471 , 16788 , 294873 , 152565 , 9479925 , 5669724 , 15057739 , 11629605 , 896741954 , 479428430 , 1750843470 , 6532032773
n×2
40417970
n×3
60626955
n×4
80835940
n×5
101044925
n÷2
10104492.5
n÷3
6736328.3333333
n÷3
5052246.25
n÷5
4041797
n2
408403074730225
n3
8.253411611177E+21
n4
1.667930714491E+29
n5
3.3707186790188E+36
2 √n
4495.4404678518
3 √n
272.38394182419
4 √n
67.048045965948
5 √n
28.914048176693
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
-20208984
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 20208985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20208985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000101110101011001
3
Ternary
1102000201111221
4
Quaternary
1031011311121
5
Quinary
20133141420
6
Senary
2001052041
8
Octal
115056531
10
Decimal
20208985
12
Duodecimal
6927021
16
Hexadecimal
1345d59
20
Vigesimal
666295
36
Base36
c15cp
md5
047b00b08c0c99fa4546ee3057754675
sha1
fcbb5d6c0310fca27b5944d75583b90ec095cd70
sha256
34d84d5bd2d89830aa5b2fcfdc18f615e9fe3fbdc24b463e47a80d2f07ccf5ca
sha512
d1b17b986b91598f77eb25e0a9a89452f982c40f70c7e4f4405b2dc3050c26e9fbf3f84c6184a3d6826c420670efd4b36cf21e7664b7d80e33cfbdd996c3d240
ripemd-160
b825f854bfaafe8f83d1e839770ae0946bda2f2b
Diameter
40417970
Circumference
126976797.62501
Area
1.283036099276E+15
Volume
3.4571809712968E+22
Surface area
5.1321443971038E+15
Circumference
126976797.62501
Perimeter
80835940
Area
408403074730225
Diagonal
28579820.668794
Surface area
2450418448381350
Volume
8.253411611177E+21
Space diagonal
35002988.789397
Perimeter
60626955
Area
1.7684371885002E+14
Altitude
17501494.394699
Surface area
1.7684371885002E+14
Volume
9.7267388636451E+20
Height
9526606.8895981