209905689 is an odd 9-digits composite number following 209905688
and preceding 209905690 . In scientific notation, it is written as 2.09905689 × 10^8.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 119858448 positive integers (up to 209905689) that are relatively prime to 209905689.
209905689 has 16 divisors, whose sum is 320090112
The reverse of 209905689 is 986509902
Previous prime number is 1823
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
two hundred nine million nine hundred five thousand six hundred eighty-nine
Scientific notation
2.09905689 × 10^8
Engineering notation
2.09905689 × 10^6
Prime Factorization
3 × 7 × 1823 × 5483
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
209905689
Product of the distinct prime numbers
The prime factorization of 209905689 is 3 × 7 × 1823 × 5483.
Since it has a total of 4 prime factors.
4 , 3 , 26 , 73 , 421 , 936 , 3979 , 4788 , 463 , 3326 , 725768 , 429817 , 1606103 , 825008 , 80393774 , 40477684 , 649023542 , 755766889 , 4055337817 , 3491907625
n×2
419811378
n×3
629717067
n×4
839622756
n×5
1049528445
n÷2
104952844.5
n÷3
69968563
n÷3
52476422.25
n÷5
41981137.8
n2
44060398274564721
n3
9.2485282574369E+24
n4
1.9413186961133E+33
n5
4.0749383847624E+41
2 √n
14488.122342112
3 √n
594.30320144097
4 √n
120.36661639388
5 √n
46.174780737421
1 , 3 , 7 , 21 , 1823 , 5469 , 5483 , 12761 , 16449 , 38283 , 38381 , 115143 , 9995509 , 29986527 , 69968563 , 209905689
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
-209905688
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 209905689 can be divided by 16 positive divisors.
The sum of these divisors (counting 209905689) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100100000101110100000011001
3
Ternary
112121222022110210
4
Quaternary
30200232200121
5
Quinary
412213440224
6
Senary
32455001333
8
Octal
1440564031
10
Decimal
209905689
12
Duodecimal
5a369249
16
Hexadecimal
c82e819
20
Vigesimal
35bi449
36
Base36
3gz09l
md5
f3a265cedab286c4a78c16695d7923a5
sha1
9bbc3b049153a88754a0068e8aab9c05a9c08ea1
sha256
bc5ce07430cf94634639e79c09d386f92ddfc3810b8656d208f0e7120611b013
sha512
96d5e5080738766db8566dd0d1b5c0429e28b24027900f04eec02a72bebbf09637dd15aba91232d86ee6915a962882c3d046dae058ad15a3b1f79db9f5760cb5
ripemd-160
a1223357bdd9848b6707b36afb6571279f987cb6
Diameter
419811378
Circumference
1318876341.0182
Area
1.3841982353361E+17
Volume
3.8740144573442E+25
Surface area
5.5367929413445E+17
Circumference
1318876341.0182
Perimeter
839622756
Area
44060398274564721
Diagonal
296851472.20307
Surface area
264362389647388326
Volume
9.2485282574369E+24
Space diagonal
363567318.14575
Perimeter
629717067
Area
1.9078712103317E+16
Altitude
181783659.07288
Surface area
1.9078712103317E+16
Volume
1.0899495078048E+24
Height
98950490.734356