209985 is an odd 6-digits composite number following 209984
and preceding 209986 . In scientific notation, it is written as 2.09985 × 10^5.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 111984 positive integers (up to 209985) that are relatively prime to 209985.
209985 has 8 divisors, whose sum is 336000
The reverse of 209985 is 589902
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 33
Digital Root 6
Name
two hundred nine thousand nine hundred eighty-five
Scientific notation
2.09985 × 10^5
Engineering notation
2.09985 × 10^3
Prime Factorization
3 × 5 × 13999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
209985
Product of the distinct prime numbers
The prime factorization of 209985 is 3 × 5 × 13999.
Since it has a total of 3 prime factors.
3 , 5 , 14 , 13 , 876 , 934 , 2557 , 5226 , 12824 , 38547 , 804623 , 126663 , 3204445 , 1638363 , 19418542 , 20461637 , 200004324 , 589274793 , 7838376610 , 4024627208
n×2
419970
n×3
629955
n×4
839940
n×5
1049925
n÷2
104992.5
n÷3
69995
n÷3
52496.25
n÷5
41997
n2
44093700225
n3
9259015641746625
n4
1.9442543995322E+21
n5
4.0826426008576E+26
2 √n
458.24120286155
3 √n
59.437804274422
4 √n
21.406569152051
5 √n
11.599456872911
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
-209984
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 209985 can be divided by 8 positive divisors.
The sum of these divisors (counting 209985) is 1, the average is 0.125.
Base
System
Value
2
Binary
110011010001000001
3
Ternary
101200001020
4
Quaternary
303101001
5
Quinary
23204420
6
Senary
4300053
8
Octal
632101
10
Decimal
209985
12
Duodecimal
a1629
16
Hexadecimal
33441
20
Vigesimal
164j5
36
Base36
4i0x
md5
0d4bcea944b5316c3ea86e3c6260a7d6
sha1
7fc755710231cf837cb0cd5f2ff2678c945c9e68
sha256
8874dfebbb2ee4928a0f731655f6de8f1c18d56f8fdaa865ae23de6a20a2e009
sha512
b77449d3f855c0cfc9caf73e7ccee4dcf346cc683857bb7a14741ecb8b8526119e441456d44aa0b50eb5837a37b5614d833efd53e22b3975399aee1c838869aa
ripemd-160
798ff8a3d98a8847feefda4ae9806af8e7d4c50e
Diameter
419970
Circumference
1319374.6667281
Area
138524444696.45
Volume
3.8784074026112E+16
Surface area
554097778785.8
Circumference
1319374.6667281
Perimeter
839940
Area
44093700225
Diagonal
296963.63489491
Surface area
264562201350
Volume
9259015641746625
Space diagonal
363704.68882735
Perimeter
629955
Area
19093132270.853
Altitude
181852.34441368
Surface area
19093132270.853
Volume
1.0911854578986E+15
Height
98987.878298305