20409561 is an odd 8-digits composite number following 20409560
and preceding 20409562 . In scientific notation, it is written as 2.0409561 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13606368 positive integers (up to 20409561) that are relatively prime to 20409561.
20409561 has 4 divisors, whose sum is 22677300
The reverse of 20409561 is 16590402
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred nine thousand five hundred sixty-one
Scientific notation
2.0409561 × 10^7
Engineering notation
2.0409561 × 10^6
Prime Factorization
9 × 2267729
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20409561
Product of the distinct prime numbers
The prime factorization of 20409561 is 9 × 2267729.
Since it has a total of 2 prime factors.
8 , 9 , 95 , 20 , 967 , 717 , 6689 , 3781 , 77339 , 12479 , 533567 , 947676 , 8338691 , 5319489 , 57865345 , 93036331 , 778873758 , 360103095 , 1013042046 , 5275625698
n×2
40819122
n×3
61228683
n×4
81638244
n×5
102047805
n÷2
10204780.5
n÷3
6803187
n÷3
5102390.25
n÷5
4081912.2
n2
416550180212721
n3
8.5016063126125E+21
n4
1.7351405263525E+29
n5
3.5413456416164E+36
2 √n
4517.6942127594
3 √n
273.2821219081
4 √n
67.21379480999
5 √n
28.971216571933
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20409560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20409561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20409561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110110110011011001
3
Ternary
1102101220122200
4
Quaternary
1031312303121
5
Quinary
20211101221
6
Senary
2005240413
8
Octal
115666331
10
Decimal
20409561
12
Duodecimal
6a03109
16
Hexadecimal
1376cd9
20
Vigesimal
67b3i1
36
Base36
c5g49
md5
20c8bda60fc089496641b3a613fc8988
sha1
1795963162b2847e1993bc90a3533771cbc2f80a
sha256
a0ab6c0bd62344b74b041bb6e36dde256c7b84a3720d01bd0b91273e6fb9fb4f
sha512
a204ffb5c5c965185155fd127ad7bf4df123fdfa2ec5ee1cfe69b431c029433f999913821903d2088218f84673bd59aab2118689eef2fa438a5f0b120476db7f
ripemd-160
785f00ed46d40bb56e6c28d9cae06b9531b588e4
Diameter
40819122
Circumference
128237053.80119
Area
1.3086309860078E+15
Volume
3.5611445247221E+22
Surface area
5.2345239440312E+15
Circumference
128237053.80119
Perimeter
81638244
Area
416550180212721
Diagonal
28863477.968281
Surface area
2499301081276326
Volume
8.5016063126125E+21
Space diagonal
35350396.612176
Perimeter
61228683
Area
1.803715190076E+14
Altitude
17675198.306088
Surface area
1.803715190076E+14
Volume
1.0019239124378E+21
Height
9621159.3227603