20409909 is an odd 8-digits composite number following 20409908
and preceding 20409910 . In scientific notation, it is written as 2.0409909 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12519936 positive integers (up to 20409909) that are relatively prime to 20409909.
20409909 has 16 divisors, whose sum is 29400000
The reverse of 20409909 is 90990402
Previous prime number is 419
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million four hundred nine thousand nine hundred nine
Scientific notation
2.0409909 × 10^7
Engineering notation
2.0409909 × 10^6
Prime Factorization
3 × 13 × 419 × 1249
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20409909
Product of the distinct prime numbers
The prime factorization of 20409909 is 3 × 13 × 419 × 1249.
Since it has a total of 4 prime factors.
1 , 2 , 66 , 57 , 112 , 919 , 8577 , 8717 , 3976 , 69510 , 498430 , 296239 , 2956195 , 7089758 , 20914486 , 65794418 , 15931869 , 112054967 , 4763478757 , 3010194758
n×2
40819818
n×3
61229727
n×4
81639636
n×5
102049545
n÷2
10204954.5
n÷3
6803303
n÷3
5102477.25
n÷5
4081981.8
n2
416564385388281
n3
8.5020411984157E+21
n4
1.7352588717392E+29
n5
3.5416475663639E+36
2 √n
4517.7327278182
3 √n
273.28367512847
4 √n
67.214081320942
5 √n
28.971315367929
1 , 3 , 13 , 39 , 419 , 1249 , 1257 , 3747 , 5447 , 16237 , 16341 , 48711 , 523331 , 1569993 , 6803303 , 20409909
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
-20409908
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 20409909 can be divided by 16 positive divisors.
The sum of these divisors (counting 20409909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110110111000110101
3
Ternary
1102101221010120
4
Quaternary
1031312320311
5
Quinary
20211104114
6
Senary
2005242153
8
Octal
115667065
10
Decimal
20409909
12
Duodecimal
6a03359
16
Hexadecimal
1376e35
20
Vigesimal
67b4f9
36
Base36
c5gdx
md5
f2acf185eaa00852a24f670a5b69d551
sha1
c6e5275908314b737b365aad30f1944443321390
sha256
64710c11ba24d3b535cbe0422e342cdf00fc144f3b6e8a1b505ed0f9af7c4f23
sha512
107dfc17a78ede37eddb784238e135a2a56596f54d6754367b219a9b61805fbe5c237fcc774369f7013c2116aff9f9e7dde3b21a39056c2e5789fb4b86400ff8
ripemd-160
71454bc6bf5520e710426cd55202a9f79fc86667
Diameter
40819818
Circumference
128239240.34967
Area
1.308675612883E+15
Volume
3.5613266892614E+22
Surface area
5.2347024515319E+15
Circumference
128239240.34967
Perimeter
81639636
Area
416564385388281
Diagonal
28863970.114601
Surface area
2499386312329686
Volume
8.5020411984157E+21
Space diagonal
35350999.365857
Perimeter
61229727
Area
1.8037767002905E+14
Altitude
17675499.682929
Surface area
1.8037767002905E+14
Volume
1.0019751642212E+21
Height
9621323.3715336