208516985 is an odd 9-digits composite number following 208516984
and preceding 208516986 . In scientific notation, it is written as 2.08516985 × 10^8.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 157000960 positive integers (up to 208516985) that are relatively prime to 208516985.
208516985 has 8 divisors, whose sum is 264939336
The reverse of 208516985 is 589615802
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 44
Digital Root 8
Name
two hundred eight million five hundred sixteen thousand nine hundred eighty-five
Scientific notation
2.08516985 × 10^8
Engineering notation
2.08516985 × 10^6
Prime Factorization
5 × 17 × 2453141
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
208516985
Product of the distinct prime numbers
The prime factorization of 208516985 is 5 × 17 × 2453141.
Since it has a total of 3 prime factors.
6 , 4 , 6 , 39 , 360 , 608 , 4100 , 9595 , 89576 , 36349 , 399142 , 953576 , 6347153 , 7757456 , 40515709 , 81855541 , 491173474 , 555236350 , 8411891075 , 7242560868
n×2
417033970
n×3
625550955
n×4
834067940
n×5
1042584925
n÷2
104258492.5
n÷3
69505661.666667
n÷3
52129246.25
n÷5
41703397
n2
43479333033490225
n3
9.0661794339543E+24
n4
1.8904524010372E+33
n5
3.9419143495028E+41
2 √n
14440.117208666
3 √n
592.98969408989
4 √n
120.16703877797
5 √n
46.113521348782
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
-208516984
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 208516985 can be divided by 8 positive divisors.
The sum of these divisors (counting 208516985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011011011011011101111001
3
Ternary
112112100202112022
4
Quaternary
30123123131321
5
Quinary
411340020420
6
Senary
32405124225
8
Octal
1433333571
10
Decimal
208516985
12
Duodecimal
599b9675
16
Hexadecimal
c6db779
20
Vigesimal
3534c95
36
Base36
3g58qh
md5
52f5d87c5f861b3faba35e4b99791e14
sha1
9fba27c9eee4321fa899d94cd5bf08a3ca5e8d7d
sha256
dfafc1bb26cf5c10ca43cb5e0edac88fce96fb0a926315d4e64de4574d8154bf
sha512
ba472c28e1cbef67e5dd85a4868ddde920e9c0009583b76a249ae23cb0a3dd215c2d30d3058596ff903060ae51eeacdfe0f27af051b007b230d7323e926e64cb
ripemd-160
ba0fd1a25d8f2bc58200e4380052a637cfded8a9
Diameter
417033970
Circumference
1310150856.4494
Area
1.36594353241E+17
Volume
3.7976323607784E+25
Surface area
5.4637741296399E+17
Circumference
1310150856.4494
Perimeter
834067940
Area
43479333033490225
Diagonal
294887548.17215
Surface area
260875998200941350
Volume
9.0661794339543E+24
Space diagonal
361162012.26108
Perimeter
625550955
Area
1.8827103473303E+16
Altitude
180581006.13054
Surface area
1.8827103473303E+16
Volume
1.0684594928672E+24
Height
98295849.390716