20190909 is an odd 8-digits composite number following 20190908
and preceding 20190910 . In scientific notation, it is written as 2.0190909 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13270880 positive integers (up to 20190909) that are relatively prime to 20190909.
20190909 has 8 divisors, whose sum is 27300672
The reverse of 20190909 is 90909102
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred ninety thousand nine hundred nine
Scientific notation
2.0190909 × 10^7
Engineering notation
2.0190909 × 10^6
Prime Factorization
3 × 71 × 94793
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20190909
Product of the distinct prime numbers
The prime factorization of 20190909 is 3 × 71 × 94793.
Since it has a total of 3 prime factors.
7 , 9 , 73 , 40 , 287 , 713 , 4783 , 2061 , 45911 , 94680 , 535966 , 907926 , 741296 , 7029867 , 56289265 , 16131768 , 217303857 , 107279319 , 9355850115 , 6510628895
n×2
40381818
n×3
60572727
n×4
80763636
n×5
100954545
n÷2
10095454.5
n÷3
6730303
n÷3
5047727.25
n÷5
4038181.8
n2
407672806246281
n3
8.2312845326933E+21
n4
1.6619711695272E+29
n5
3.3556708644547E+36
2 √n
4493.4295365567
3 √n
272.30270599693
4 √n
67.03304809239
5 √n
28.908873870019
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
-20190908
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 20190909 can be divided by 8 positive divisors.
The sum of these divisors (counting 20190909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001011010111101
3
Ternary
1101222210201110
4
Quaternary
1031001122331
5
Quinary
20132102114
6
Senary
2000432233
8
Octal
115013275
10
Decimal
20190909
12
Duodecimal
6918679
16
Hexadecimal
13416bd
20
Vigesimal
663h59
36
Base36
c0rel
md5
196d8157ddd4ac1e6cb4cf9e50e57e05
sha1
d62201acf1621552e4adccdf467f278e2fd8f212
sha256
5e4327dabd771db92f4c293c68b7d8254458e786e4e80bc587d682a1ccff5712
sha512
88104040ddd16dde47b18fa7de5771396d3b48d322fda8b4347869f3c7259101836bf507af4e5162ba02e2e32042f5d960b301bab7d0f0d92299242a930ea9c3
ripemd-160
fd7f31e584314c2c773dc3e636e77e8da2b0cd81
Diameter
40381818
Circumference
126863222.7674
Area
1.2807418931717E+15
Volume
3.4479124023355E+22
Surface area
5.1229675726866E+15
Circumference
126863222.7674
Perimeter
80763636
Area
407672806246281
Diagonal
28554257.344441
Surface area
2446036837477686
Volume
8.2312845326933E+21
Space diagonal
34971680.239
Perimeter
60572727
Area
1.7652750332069E+14
Altitude
17485840.1195
Surface area
1.7652750332069E+14
Volume
9.7006618515723E+20
Height
9518085.7814803