20405418 is an even 8-digits composite number following 20405417
and preceding 20405419 . In scientific notation, it is written as 2.0405418 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 6183440 positive integers (up to 20405418) that are relatively prime to 20405418.
20405418 has 16 divisors, whose sum is 44521056
The reverse of 20405418 is 81450402
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million four hundred five thousand four hundred eighteen
Scientific notation
2.0405418 × 10^7
Engineering notation
2.0405418 × 10^6
Prime Factorization
2 × 3 × 11 × 309173
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20405418
Product of the distinct prime numbers
The prime factorization of 20405418 is 2 × 3 × 11 × 309173.
Since it has a total of 4 prime factors.
7 , 5 , 89 , 50 , 880 , 335 , 8758 , 3294 , 63416 , 3511 , 935945 , 727403 , 5982297 , 7357372 , 86448984 , 94500013 , 739525645 , 694008484 , 2789301075 , 1181755471
n×2
40810836
n×3
61216254
n×4
81621672
n×5
102027090
n÷2
10202709
n÷3
6801806
n÷3
5101354.5
n÷5
4081083.6
n2
416381083754724
n3
8.4964300613082E+21
n4
1.7337320690876E+29
n5
3.5377527569737E+36
2 √n
4517.2356591172
3 √n
273.2636291953
4 √n
67.210383566211
5 √n
28.970040285021
1 , 2 , 3 , 6 , 11 , 22 , 33 , 66 , 309173 , 618346 , 927519 , 1855038 , 3400903 , 6801806 , 10202709 , 20405418
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
-20405417
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 20405418 can be divided by 16 positive divisors.
The sum of these divisors (counting 20405418) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110101110010101010
3
Ternary
1102101200222020
4
Quaternary
1031311302222
5
Quinary
20210433133
6
Senary
2005205310
8
Octal
115656252
10
Decimal
20405418
12
Duodecimal
6a00836
16
Hexadecimal
1375caa
20
Vigesimal
67adai
36
Base36
c5cx6
md5
84dcc87f2712d2b6db4ac536f4dee976
sha1
bab1f0e2dae37f031a8de5301fa7e310245f1e93
sha256
68843b6808d64986af17b4aff5b03fbf646006e600c674fb4372b9a9cef96d4c
sha512
aeacdb1c65fbab788acc341fece819f5d54c31b50a55133da065bdc69a41b0b36c6e573ec80d8682418d40baa51281b4f5cced449e3a6cb1f77940a3a50f1ef3
ripemd-160
981f7df6076719fe12a83fef02fb2cce67b5d480
Diameter
40810836
Circumference
128211022.56446
Area
1.3080997538176E+15
Volume
3.558976301646E+22
Surface area
5.2323990152704E+15
Circumference
128211022.56446
Perimeter
81621672
Area
416381083754724
Diagonal
28857618.881492
Surface area
2498286502528344
Volume
8.4964300613082E+21
Space diagonal
35343220.725681
Perimeter
61216254
Area
1.8029829809344E+14
Altitude
17671610.36284
Surface area
1.8029829809344E+14
Volume
1.0013138853714E+21
Height
9619206.2938307