20478909 is an odd 8-digits composite number following 20478908
and preceding 20478910 . In scientific notation, it is written as 2.0478909 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 12240000 positive integers (up to 20478909) that are relatively prime to 20478909.
20478909 has 16 divisors, whose sum is 30199104
The reverse of 20478909 is 90987402
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million four hundred seventy-eight thousand nine hundred nine
Scientific notation
2.0478909 × 10^7
Engineering notation
2.0478909 × 10^6
Prime Factorization
3 × 11 × 73 × 8501
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20478909
Product of the distinct prime numbers
The prime factorization of 20478909 is 3 × 11 × 73 × 8501.
Since it has a total of 4 prime factors.
8 , 1 , 75 , 59 , 352 , 448 , 1746 , 6098 , 247 , 48230 , 370797 , 701699 , 8778237 , 1653142 , 21532677 , 749751 , 440142886 , 169711743 , 4513517748 , 521082330
n×2
40957818
n×3
61436727
n×4
81915636
n×5
102394545
n÷2
10239454.5
n÷3
6826303
n÷3
5119727.25
n÷5
4095781.8
n2
419385713830281
n3
8.5885618694304E+21
n4
1.7588437696493E+29
n5
3.6019201503866E+36
2 √n
4525.3628583794
3 √n
273.59129309096
4 √n
67.270817286394
5 √n
28.990877659818
1 , 3 , 11 , 33 , 73 , 219 , 803 , 2409 , 8501 , 25503 , 93511 , 280533 , 620573 , 1861719 , 6826303 , 20478909
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
-20478908
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 20478909 can be divided by 16 positive divisors.
The sum of these divisors (counting 20478909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110000111101110111101
3
Ternary
1102112102210010
4
Quaternary
1032013232331
5
Quinary
20220311114
6
Senary
2010533433
8
Octal
116075675
10
Decimal
20478909
12
Duodecimal
6a37279
16
Hexadecimal
1387bbd
20
Vigesimal
67jh59
36
Base36
c6xml
md5
06fbb7fa94d466cf3aaecf66d3162a49
sha1
9ff50d7aa97497464e1fd6f332efa35c99f439c6
sha256
dd3f73ed80da30e20ab0312c3de236615c42e59692c4e166b26ce22860a9f811
sha512
2052b8c9c60782f2e92c1f15d561a9050de0914fab525052205dbd92b3f6edcad22ecdb333aebda55cf1add0a4a3fe73883eba71954c5cc2e14aa1e1e96f9636
ripemd-160
eaa9f0c69c2109f22ab8e3adec0b2c2d61d0879c
Diameter
40957818
Circumference
128672780.13587
Area
1.3175390775897E+15
Volume
3.5975683831872E+22
Surface area
5.2701563103589E+15
Circumference
128672780.13587
Perimeter
81915636
Area
419385713830281
Diagonal
28961550.850404
Surface area
2516314282981686
Volume
8.5885618694304E+21
Space diagonal
35470510.87158
Perimeter
61436727
Area
1.8159934108065E+14
Altitude
17735255.43579
Surface area
1.8159934108065E+14
Volume
1.0121717230857E+21
Height
9653850.2834681