20188909 is an odd 8-digits composite number following 20188908
and preceding 20188910 . In scientific notation, it is written as 2.0188909 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors.
There are 18347472 positive integers (up to 20188909) that are relatively prime to 20188909.
20188909 has 12 divisors, whose sum is 22200096
The reverse of 20188909 is 90988102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million one hundred eighty-eight thousand nine hundred nine
Scientific notation
2.0188909 × 10^7
Engineering notation
2.0188909 × 10^6
Prime Factorization
13 × 13 × 67 × 1783
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1552993
Product of the distinct prime numbers
The prime factorization of 20188909 is 13 × 13 × 67 × 1783.
Since it has a total of 4 prime factors.
4 , 3 , 59 , 25 , 347 , 90 , 3056 , 8514 , 11620 , 73369 , 422940 , 331534 , 5040994 , 3843935 , 57481974 , 66179260 , 215014160 , 460987298 , 9971527973 , 6145837494
n×2
40377818
n×3
60566727
n×4
80755636
n×5
100944545
n÷2
10094454.5
n÷3
6729636.3333333
n÷3
5047227.25
n÷5
4037781.8
n2
407592046610281
n3
8.2288387381387E+21
n4
1.6613127645996E+29
n5
3.3540092225039E+36
2 √n
4493.2069838813
3 √n
272.2937147657
4 √n
67.031388049789
5 √n
28.908301136629
1 , 13 , 67 , 169 , 871 , 1783 , 11323 , 23179 , 119461 , 301327 , 1552993 , 20188909
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20188908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20188909 can be divided by 12 positive divisors.
The sum of these divisors (counting 20188909) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000000111011101101
3
Ternary
1101222200222101
4
Quaternary
1031000323231
5
Quinary
20132021114
6
Senary
2000415101
8
Octal
115007355
10
Decimal
20188909
12
Duodecimal
6917491
16
Hexadecimal
1340eed
20
Vigesimal
663c59
36
Base36
c0pv1
md5
c0c7c9a747603565e389bb949bc700a0
sha1
0a79e105484686da2826b2d63b9a9d19f1556f38
sha256
5a7d7aacc35fb432e4e5318bdb013c2bb8312c10a8f5b85c8070354d93c34a81
sha512
26fcbd6a4f34bf1e6c22324f0e7997bc4d1869656bd318cfda6ffe4db2087a6d326fef41f2eb3c6706e8b8cef3d3c07234bcb19d2c91dbd42f36e44c279ad866
ripemd-160
d925802f50e3515777913e44528c1bd91eb44583
Diameter
40377818
Circumference
126850656.39679
Area
1.2804881792925E+15
Volume
3.4468879103082E+22
Surface area
5.1219527171699E+15
Circumference
126850656.39679
Perimeter
80755636
Area
407592046610281
Diagonal
28551428.917316
Surface area
2445552279661686
Volume
8.2288387381387E+21
Space diagonal
34968216.137385
Perimeter
60566727
Area
1.764925333725E+14
Altitude
17484108.068692
Surface area
1.764925333725E+14
Volume
9.6977794550474E+20
Height
9517142.9724387