20091909 is an odd 8-digits composite number following 20091908
and preceding 20091910 . In scientific notation, it is written as 2.0091909 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12518400 positive integers (up to 20091909) that are relatively prime to 20091909.
20091909 has 16 divisors, whose sum is 28563840
The reverse of 20091909 is 90919002
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million ninety-one thousand nine hundred nine
Scientific notation
2.0091909 × 10^7
Engineering notation
2.0091909 × 10^6
Prime Factorization
3 × 151 × 17 × 2609
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20091909
Product of the distinct prime numbers
The prime factorization of 20091909 is 3 × 151 × 17 × 2609.
Since it has a total of 4 prime factors.
9 , 6 , 92 , 31 , 702 , 279 , 2009 , 6515 , 332 , 91879 , 815343 , 161821 , 5720803 , 7223725 , 99831589 , 78348260 , 295314609 , 926920326 , 1440271524 , 5743799367
n×2
40183818
n×3
60275727
n×4
80367636
n×5
100459545
n÷2
10045954.5
n÷3
6697303
n÷3
5022977.25
n÷5
4018381.8
n2
403684807264281
n3
8.1107984122365E+21
n4
1.62961423616E+29
n5
3.2742060938031E+36
2 √n
4482.399915224
3 √n
271.8569253673
4 √n
66.950727518258
5 √n
28.880468925784
1 , 3 , 17 , 51 , 151 , 453 , 2567 , 2609 , 7701 , 7827 , 44353 , 133059 , 393959 , 1181877 , 6697303 , 20091909
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
-20091908
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 20091909 can be divided by 16 positive divisors.
The sum of these divisors (counting 20091909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101001010000000101
3
Ternary
1101210202220210
4
Quaternary
1030221100011
5
Quinary
20120420114
6
Senary
1554350033
8
Octal
114512005
10
Decimal
20091909
12
Duodecimal
688b319
16
Hexadecimal
1329405
20
Vigesimal
65b9f9
36
Base36
byn0l
md5
195d0b7aba20d24d4626e3bc61072f2b
sha1
f568b09cc28873e25d87120a2b38670c88726290
sha256
36acbd2f2f58ebabb811ba29ab81aaf58c8863140e90fd0faf48c8407a074d22
sha512
db41ad64faad07bf5fd61503dd2caf51e6bbc8c35e2f601325f69c81e46ad9e7b1f5fb9a1dc3b22d8d9e74647ecdf3a32a97c574e495398aaeba10bc1e6a7828
ripemd-160
2fc0bf9d11976381843fe46c3a77c38ce621a5f9
Diameter
40183818
Circumference
126241187.42199
Area
1.2682132248673E+15
Volume
3.3974432942173E+22
Surface area
5.0728528994691E+15
Circumference
126241187.42199
Perimeter
80367636
Area
403684807264281
Diagonal
28414250.201766
Surface area
2422108843585686
Volume
8.1107984122365E+21
Space diagonal
34800207.20905
Perimeter
60275727
Area
1.7480064910635E+14
Altitude
17400103.604525
Surface area
1.7480064910635E+14
Volume
9.5586675968825E+20
Height
9471416.733922