20409818 is an even 8-digits composite number following 20409817
and preceding 20409819 . In scientific notation, it is written as 2.0409818 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 8563440 positive integers (up to 20409818) that are relatively prime to 20409818.
20409818 has 8 divisors, whose sum is 30829248
The reverse of 20409818 is 81890402
Previous prime number is 143
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million four hundred nine thousand eight hundred eighteen
Scientific notation
2.0409818 × 10^7
Engineering notation
2.0409818 × 10^6
Prime Factorization
2 × 143 × 71363
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20409818
Product of the distinct prime numbers
The prime factorization of 20409818 is 2 × 143 × 71363.
Since it has a total of 3 prime factors.
9 , 9 , 42 , 65 , 339 , 437 , 5139 , 4878 , 60306 , 42936 , 799882 , 873061 , 7724639 , 9670121 , 10944829 , 15418864 , 115838870 , 442534614 , 4343955276 , 9768607480
n×2
40819636
n×3
61229454
n×4
81639272
n×5
102049090
n÷2
10204909
n÷3
6803272.6666667
n÷3
5102454.5
n÷5
4081963.6
n2
416560670793124
n3
8.5019274768456E+21
n4
1.7352279245162E+29
n5
3.5415686127893E+36
2 √n
4517.7226563834
3 √n
273.28326897197
4 √n
67.214006400329
5 √n
28.971289533474
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
-20409817
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 20409818 can be divided by 8 positive divisors.
The sum of these divisors (counting 20409818) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110110111011010
3
Ternary
1102101221000012
4
Quaternary
1031312313122
5
Quinary
20211103233
6
Senary
2005241522
8
Octal
115666732
10
Decimal
20409818
12
Duodecimal
6a032a2
16
Hexadecimal
1376dda
20
Vigesimal
67b4ai
36
Base36
c5gbe
md5
b6c89c5634d9d1fe8dccf55b3ddc8484
sha1
7896fa284c876e26411a64a4bb9584b132dab125
sha256
c289e308cbae6668a9c82897cd3f30965dc3f4469a02de908082217a010dcaf1
sha512
f0000f43b351cef8933d81a02c80a018bcb97ae69f1a91a5951cdea1e667efe4cd1b2d7bef8bcc2a29cd5dc46068923e2c77885114f7a3c209491b1ceb9245e3
ripemd-160
b98f033ec02717d95e0f8df3a91562638b6dba6c
Diameter
40819636
Circumference
128238668.57981
Area
1.3086639431381E+15
Volume
3.5612790536815E+22
Surface area
5.2346557725525E+15
Circumference
128238668.57981
Perimeter
81639272
Area
416560670793124
Diagonal
28863841.421167
Surface area
2499364024758744
Volume
8.5019274768456E+21
Space diagonal
35350841.749234
Perimeter
61229454
Area
1.8037606156217E+14
Altitude
17675420.874617
Surface area
1.8037606156217E+14
Volume
1.0019617620056E+21
Height
9621280.4737222