208540989 is an odd 9-digits composite number following 208540988
and preceding 208540990 . In scientific notation, it is written as 2.08540989 × 10^8.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 129881088 positive integers (up to 208540989) that are relatively prime to 208540989.
208540989 has 24 divisors, whose sum is 321305400
The reverse of 208540989 is 989045802
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 45
Digital Root 9
Name
two hundred eight million five hundred forty thousand nine hundred eighty-nine
Scientific notation
2.08540989 × 10^8
Engineering notation
2.08540989 × 10^6
Prime Factorization
3 × 17 × 3 × 137 × 9949
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
69513663
Product of the distinct prime numbers
The prime factorization of 208540989 is 3 × 17 × 3 × 137 × 9949.
Since it has a total of 5 prime factors.
7 , 4 , 68 , 97 , 646 , 808 , 1987 , 3599 , 88247 , 26361 , 984968 , 510753 , 8710496 , 6309601 , 27191802 , 18731039 , 102288559 , 799632551 , 1617842156 , 6696537041
n×2
417081978
n×3
625622967
n×4
834163956
n×5
1042704945
n÷2
104270494.5
n÷3
69513663
n÷3
52135247.25
n÷5
41708197.8
n2
43489344093098121
n3
9.069310828136E+24
n4
1.8913230496479E+33
n5
3.9441837929207E+41
2 √n
14440.948341435
3 √n
593.01244775742
4 √n
120.17049696758
5 √n
46.11458299659
1 , 3 , 9 , 17 , 51 , 137 , 153 , 411 , 1233 , 2329 , 6987 , 9949 , 20961 , 29847 , 89541 , 169133 , 507399 , 1363013 , 1522197 , 4089039 , 12267117 , 23171221 , 69513663 , 208540989
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-208540988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 208540989 can be divided by 24 positive divisors.
The sum of these divisors (counting 208540989) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1100011011100001010100111101
3
Ternary
112112101222110100
4
Quaternary
30123201110331
5
Quinary
411341302424
6
Senary
32405431313
8
Octal
1433412475
10
Decimal
208540989
12
Duodecimal
59a0b539
16
Hexadecimal
c6e153d
20
Vigesimal
3537c99
36
Base36
3g5r99
md5
6a87662ff472b16ab2f7dd55467736f0
sha1
fae1ba44ed21774be64667578b7a0abf4526e05b
sha256
f8e77f6ece269440112d01b2d9404afcdb251c0c41c6b3c2f68a8248a38af1c7
sha512
44f14fe7530ff9b414de2d4f747d39d56b3403ef3eb17501c0216af26076ceeaf8ffafcb126700d405e454bc2e27c41dafa3843c2f3d9d11b0d4009ee54dd967
ripemd-160
fa6fe7c3f80b0621f8dea82eefc65e9b224d3ff1
Diameter
417081978
Circumference
1310301678.0295
Area
1.3662580391232E+17
Volume
3.7989440361059E+25
Surface area
5.4650321564926E+17
Circumference
1310301678.0295
Perimeter
834163956
Area
43489344093098121
Diagonal
294921494.9545
Surface area
260936064558588726
Volume
9.069310828136E+24
Space diagonal
361203588.40866
Perimeter
625622967
Area
1.8831438389273E+16
Altitude
180601794.20433
Surface area
1.8831438389273E+16
Volume
1.0688285312106E+24
Height
98307164.984833