208513905 is an odd 9-digits composite number following 208513904
and preceding 208513906 . In scientific notation, it is written as 2.08513905 × 10^8.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 104985600 positive integers (up to 208513905) that are relatively prime to 208513905.
208513905 has 16 divisors, whose sum is 235210752
The reverse of 208513905 is 509315802
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
two hundred eight million five hundred thirteen thousand nine hundred five
Scientific notation
2.08513905 × 10^8
Engineering notation
2.08513905 × 10^6
Prime Factorization
15 × 31 × 41 × 10937
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
208513905
Product of the distinct prime numbers
The prime factorization of 208513905 is 15 × 31 × 41 × 10937.
Since it has a total of 4 prime factors.
2 , 2 , 34 , 57 , 491 , 8 , 4143 , 9237 , 63315 , 63714 , 599073 , 596327 , 1679260 , 1452291 , 91894376 , 84988782 , 820010455 , 981846021 , 604918933 , 3407328151
n×2
417027810
n×3
625541715
n×4
834055620
n×5
1042569525
n÷2
104256952.5
n÷3
69504635
n÷3
52128476.25
n÷5
41702781
n2
43478048578349025
n3
9.0657776908513E+24
n4
1.8903407081813E+33
n5
3.9416232284334E+41
2 √n
14440.010560938
3 √n
592.98677439608
4 √n
120.16659502931
5 √n
46.113385119606
1 , 15 , 31 , 41 , 465 , 615 , 1271 , 10937 , 19065 , 164055 , 339047 , 448417 , 5085705 , 6726255 , 13900927 , 208513905
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
-208513904
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 208513905 can be divided by 16 positive divisors.
The sum of these divisors (counting 208513905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100011011011010101101110001
3
Ternary
112112100121022020
4
Quaternary
30123122231301
5
Quinary
411334421110
6
Senary
32405102053
8
Octal
1433325561
10
Decimal
208513905
12
Duodecimal
599b7929
16
Hexadecimal
c6dab71
20
Vigesimal
35344f5
36
Base36
3g56cx
md5
215e94c005f753f2b6c6efe3c6493a9b
sha1
55b21cd1da3ba49752529a3ba3eb4a38967b2b24
sha256
7755bec1e17f6a1d52a5690e14e68929c9dfa4e39c0bd425cd9892005a88a244
sha512
ad84dca1a4c421ca6d220d46ba5c5c668b9a936f6bae2257bed4e14ef8819cde2bf287be4150b7c0b64fb7d7e7e086bc6b7169079e91efc7b39e7415eecd0fa9
ripemd-160
f514ed17ad8970d96fbc93737d7fb85316138578
Diameter
417027810
Circumference
1310131504.2386
Area
1.3659031800616E+17
Volume
3.7974640790209E+25
Surface area
5.4636127202465E+17
Circumference
1310131504.2386
Perimeter
834055620
Area
43478048578349025
Diagonal
294883192.39438
Surface area
260868291470094150
Volume
9.0657776908513E+24
Space diagonal
361156677.54459
Perimeter
625541715
Area
1.8826547287912E+16
Altitude
180578338.7723
Surface area
1.8826547287912E+16
Volume
1.0684121469884E+24
Height
98294397.464792