20409813 is an odd 8-digits composite number following 20409812
and preceding 20409814 . In scientific notation, it is written as 2.0409813 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 8 positive divisors.
There are 13606056 positive integers (up to 20409813) that are relatively prime to 20409813.
20409813 has 8 divisors, whose sum is 22958360
The reverse of 20409813 is 31890402
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 eight hundred thirteen
Scientific notation
2.0409813 × 10^7
Engineering notation
2.0409813 × 10^6
Prime Factorization
9 × 9 × 9 × 27997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
251973
Product of the distinct prime numbers
The prime factorization of 20409813 is 9 × 9 × 9 × 27997.
Since it has a total of 4 prime factors.
8 , 1 , 86 , 75 , 955 , 933 , 1317 , 2913 , 96913 , 20702 , 799596 , 998242 , 5354852 , 9285225 , 69372248 , 76077272 , 508228793 , 231800336 , 1386990849 , 9153967343
n×2
40819626
n×3
61229439
n×4
81639252
n×5
102049065
n÷2
10204906.5
n÷3
6803271
n÷3
5102453.25
n÷5
4081962.6
n2
416560466694969
n3
8.501921228437E+21
n4
1.7352262241313E+29
n5
3.5415642747216E+36
2 √n
4517.7221030072
3 √n
273.28324665565
4 √n
67.214002283804
5 √n
28.971288113996
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20409812
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20409813 can be divided by 8 positive divisors.
The sum of these divisors (counting 20409813) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110110111010101
3
Ternary
1102101221000000
4
Quaternary
1031312313111
5
Quinary
20211103223
6
Senary
2005241513
8
Octal
115666725
10
Decimal
20409813
12
Duodecimal
6a03299
16
Hexadecimal
1376dd5
20
Vigesimal
67b4ad
36
Base36
c5gb9
md5
fe82f0d4da06a21ff52733eca56ce101
sha1
5f9a4d268d097fa41fa032d0c91833a419f5c678
sha256
fb2060b2ad048415a0012aa0bdf0a614fcdeb313f5f5ce3381fb69c75290cfa4
sha512
a4065f60c8462a129dd504b9c2959a44d569a020b2d5c348fd2b66aaa10897e58ba8a6c69c8705185a9bae636c54b6685e26b41813e3727454e3ab935090442f
ripemd-160
39567fccc500a2510cd852b0d3b779db7d448d00
Diameter
40819626
Circumference
128238637.16388
Area
1.3086633019449E+15
Volume
3.5612764363543E+22
Surface area
5.2346532077794E+15
Circumference
128238637.16388
Perimeter
81639252
Area
416560466694969
Diagonal
28863834.350099
Surface area
2499362800169814
Volume
8.501921228437E+21
Space diagonal
35350833.08898
Perimeter
61229439
Area
1.8037597318507E+14
Altitude
17675416.54449
Surface area
1.8037597318507E+14
Volume
1.0019610256236E+21
Height
9621278.1166996