206985 (number)

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.

Interesting facts

Basic properties

Name

Name two hundred six thousand nine hundred eighty-five

Notation

Scientific notation 2.06985 × 10^5
Engineering notation 2.06985 × 10^3

Prime Factorization of 206985

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.

Most popular turbo-numbers

Basic calculations (n = 206985)

Multiplication

n×y
n×2 413970
n×3 620955
n×4 827940
n×5 1034925

Division

n÷y
n÷2 103492.5
n÷3 68995
n÷3 51746.25
n÷5 41397

Exponentiation

ny
n2 42842790225
n3 8867814934721625
n4 1.8355046742634E+21
n5 3.799219350024E+26

Nth Root

y√n
2√n 454.95604183261
3√n 59.153388102178
4√n 21.329698587477
5√n 11.566122154199

Divisors of 206985

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 conversion 206985

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

Cryptographic Hash Functions

md5 81465f8b234f67ee4bd62e445f08eb88
sha1 ff5f03dc109dac0bfb7e76b11c72c51d12445393
sha256 352d3318ab8393c842b617d0aac38ea006f71ffc3b29eea4130bb8c5476dbc95
sha512 5043b6851940b1d620fd3482d80ac810e0e174fd8904244773995a52b0073c54475f19d2f71b0aa8e544e2ccd131fb692b4fceab53c15ceeb2934a52c94310d6
ripemd-160 ad56498f616817a30adbd61100b3b694709d946c

206985 as geometric shapes

Circle

Radius = n
Diameter 413970
Circumference 1300525.1108066
Area 134594595030.15

Sphere

Radius = n
Volume 3.714541633642E+16
Surface area 538378380120.59
Circumference 1300525.1108066

Square

Length = n
Perimeter 827940
Area 42842790225
Diagonal 292720.9942078

Cube

Length = n
Surface area 257056741350
Volume 8867814934721625
Space diagonal 358508.53640464

Equilateral Triangle

Length = n
Perimeter 620955
Area 18551472351.929
Altitude 179254.26820232

Triangular Pyramid

Length = n
Surface area 18551472351.929
Volume 1.0450820124415E+15
Height 97573.664735932