20405431 is an odd 8-digits composite number following 20405430
and preceding 20405432 . In scientific notation, it is written as 2.0405431 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20395872 positive integers (up to 20405431) that are relatively prime to 20405431.
20405431 has 4 divisors, whose sum is 20414992
The reverse of 20405431 is 13450402
Previous prime number is 3217
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million four hundred five thousand four hundred thirty-one
Scientific notation
2.0405431 × 10^7
Engineering notation
2.0405431 × 10^6
Prime Factorization
3217 × 6343
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20405431
Product of the distinct prime numbers
The prime factorization of 20405431 is 3217 × 6343.
Since it has a total of 2 prime factors.
4 , 2 , 70 , 66 , 294 , 428 , 3255 , 4223 , 5016 , 12537 , 164478 , 952813 , 2855315 , 5465652 , 30005241 , 95877103 , 414898728 , 650772423 , 7928040924 , 5774030829
n×2
40810862
n×3
61216293
n×4
81621724
n×5
102027155
n÷2
10202715.5
n÷3
6801810.3333333
n÷3
5101357.75
n÷5
4081086.2
n2
416381614295761
n3
8.4964463001808E+21
n4
1.7337364872354E+29
n5
3.5377640262465E+36
2 √n
4517.2370980501
3 √n
273.26368722607
4 √n
67.210394270902
5 √n
28.9700439763
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
-20405430
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 20405431 can be divided by 4 positive divisors.
The sum of these divisors (counting 20405431) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101110010110111
3
Ternary
1102101200222201
4
Quaternary
1031311302313
5
Quinary
20210433211
6
Senary
2005205331
8
Octal
115656267
10
Decimal
20405431
12
Duodecimal
6a00847
16
Hexadecimal
1375cb7
20
Vigesimal
67adbb
36
Base36
c5cxj
md5
7f6894cd542054b01bebdb2ad9aa5c73
sha1
3e7702b18ef52e00f47ac147dd1d2ca544eb7a4c
sha256
03c1200da2c4ea777f4a64f11a62783b0bc2f066f9b2f1ba16ef090f914f83b7
sha512
e1eced279acaf9911e90accfd5d6473293984bcb899101605ef6bfc9bcf5e2333ec6bbdb9625a49902da0f3067ebd1fc3169ee253dd9c86c6029b09feff949cd
ripemd-160
0856904df3f73fc6fd63014dd9a42d08004927fc
Diameter
40810862
Circumference
128211104.24587
Area
1.3081014205614E+15
Volume
3.5589831037691E+22
Surface area
5.2324056822457E+15
Circumference
128211104.24587
Perimeter
81621724
Area
416381614295761
Diagonal
28857637.266268
Surface area
2498289685774566
Volume
8.4964463001808E+21
Space diagonal
35343243.242341
Perimeter
61216293
Area
1.8029852782445E+14
Altitude
17671621.621171
Surface area
1.8029852782445E+14
Volume
1.0013157991409E+21
Height
9619212.4220895