206985 is an odd 6-digits composite number following 206984
and preceding 206986 . In scientific notation, it is written as 2.06985 × 10^5.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 110384 positive integers (up to 206985) that are relatively prime to 206985.
206985 has 8 divisors, whose sum is 331200
The reverse of 206985 is 589602
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 30
Digital Root 3
Name
two hundred six thousand nine hundred eighty-five
Scientific notation
2.06985 × 10^5
Engineering notation
2.06985 × 10^3
Prime Factorization
5 × 3 × 13799
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
206985
Product of the distinct prime numbers
The prime factorization of 206985 is 5 × 3 × 13799.
Since it has a total of 3 prime factors.
10 , 9 , 38 , 42 , 216 , 902 , 9286 , 5268 , 80214 , 86628 , 765259 , 509416 , 8294405 , 2163588 , 27972994 , 42796999 , 391349130 , 280490648 , 9806880420 , 7648710845
n×2
413970
n×3
620955
n×4
827940
n×5
1034925
n÷2
103492.5
n÷3
68995
n÷3
51746.25
n÷5
41397
n2
42842790225
n3
8867814934721625
n4
1.8355046742634E+21
n5
3.799219350024E+26
2 √n
454.95604183261
3 √n
59.153388102178
4 √n
21.329698587477
5 √n
11.566122154199
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
-206984
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 206985 can be divided by 8 positive divisors.
The sum of these divisors (counting 206985) is 1, the average is 0.125.
Base
System
Value
2
Binary
110010100010001001
3
Ternary
101111221010
4
Quaternary
302202021
5
Quinary
23110420
6
Senary
4234133
8
Octal
624211
10
Decimal
206985
12
Duodecimal
9b949
16
Hexadecimal
32889
20
Vigesimal
15h95
36
Base36
4fpl
md5
81465f8b234f67ee4bd62e445f08eb88
sha1
ff5f03dc109dac0bfb7e76b11c72c51d12445393
sha256
352d3318ab8393c842b617d0aac38ea006f71ffc3b29eea4130bb8c5476dbc95
sha512
5043b6851940b1d620fd3482d80ac810e0e174fd8904244773995a52b0073c54475f19d2f71b0aa8e544e2ccd131fb692b4fceab53c15ceeb2934a52c94310d6
ripemd-160
ad56498f616817a30adbd61100b3b694709d946c
Diameter
413970
Circumference
1300525.1108066
Area
134594595030.15
Volume
3.714541633642E+16
Surface area
538378380120.59
Circumference
1300525.1108066
Perimeter
827940
Area
42842790225
Diagonal
292720.9942078
Surface area
257056741350
Volume
8867814934721625
Space diagonal
358508.53640464
Perimeter
620955
Area
18551472351.929
Altitude
179254.26820232
Surface area
18551472351.929
Volume
1.0450820124415E+15
Height
97573.664735932