209919985 is an odd 9-digits composite number following 209919984
and preceding 209919986 . In scientific notation, it is written as 2.09919985 × 10^8.
The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors.
There are 150733440 positive integers (up to 209919985) that are relatively prime to 209919985.
209919985 has 16 divisors, whose sum is 278288640
The reverse of 209919985 is 589919902
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 52
Digital Root 7
Name
two hundred nine million nine hundred nineteen thousand nine hundred eighty-five
Scientific notation
2.09919985 × 10^8
Engineering notation
2.09919985 × 10^6
Prime Factorization
5 × 11 × 79 × 48313
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
209919985
Product of the distinct prime numbers
The prime factorization of 209919985 is 5 × 11 × 79 × 48313.
Since it has a total of 4 prime factors.
3 , 10 , 1 , 84 , 499 , 356 , 6435 , 1070 , 91595 , 84690 , 957487 , 206171 , 354322 , 8479560 , 71213799 , 82756277 , 710606747 , 30462368 , 2368580420 , 5644517412
n×2
419839970
n×3
629759955
n×4
839679940
n×5
1049599925
n÷2
104959992.5
n÷3
69973328.333333
n÷3
52479996.25
n÷5
41983997
n2
44066400102400225
n3
9.2504180484999E+24
n4
1.9418476179848E+33
n5
4.0763262283966E+41
2 √n
14488.615703372
3 √n
594.31669315993
4 √n
120.36866578712
5 √n
46.175409683388
1 , 5 , 11 , 55 , 79 , 395 , 869 , 4345 , 48313 , 241565 , 531443 , 2657215 , 3816727 , 19083635 , 41983997 , 209919985
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-209919984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 209919985 can be divided by 16 positive divisors.
The sum of these divisors (counting 209919985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100100000110001111111110001
3
Ternary
112122000001002021
4
Quaternary
30200301333301
5
Quinary
412214414420
6
Senary
32455151441
8
Octal
1440617761
10
Decimal
209919985
12
Duodecimal
5a375581
16
Hexadecimal
c831ff1
20
Vigesimal
35bjjj5
36
Base36
3gzbap
md5
c172fb673f8629e4ac22863af0934868
sha1
903182632217265f9d7f99f7818c9024318ee49f
sha256
a80f6e97f25d30516f9bf3d051c09632bc6e6442ca2f2bee073ce3861c6ad07f
sha512
5285fdb3e0b957b875c2e7dfc0e89fa4e0616187e3d9517321bf526122c787806751e455c149fcae804916d58b7c868b5105424ea499e12190305ecc4389279c
ripemd-160
b3e64b10138c7fbe79945f13a79fd4944b1143e7
Diameter
419839970
Circumference
1318966165.4354
Area
1.3843867883185E+17
Volume
3.8748060511735E+25
Surface area
5.537547153274E+17
Circumference
1318966165.4354
Perimeter
839679940
Area
44066400102400225
Diagonal
296871689.80016
Surface area
264398400614401350
Volume
9.2504180484999E+24
Space diagonal
363592079.5441
Perimeter
629759955
Area
1.9081310971004E+16
Altitude
181796039.77205
Surface area
1.9081310971004E+16
Volume
1.0901722218174E+24
Height
98957229.933386