20431389 is an odd 8-digits composite number following 20431388
and preceding 20431390 . In scientific notation, it is written as 2.0431389 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12260400 positive integers (up to 20431389) that are relatively prime to 20431389.
20431389 has 16 divisors, whose sum is 30011904
The reverse of 20431389 is 98313402
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million four hundred thirty-one thousand three hundred eighty-nine
Scientific notation
2.0431389 × 10^7
Engineering notation
2.0431389 × 10^6
Prime Factorization
3 × 11 × 103 × 6011
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20431389
Product of the distinct prime numbers
The prime factorization of 20431389 is 3 × 11 × 103 × 6011.
Since it has a total of 4 prime factors.
9 , 4 , 9 , 94 , 102 , 389 , 3466 , 7596 , 37576 , 20973 , 581236 , 819571 , 3689748 , 646706 , 20840929 , 99735727 , 890748033 , 75401721 , 1473667636 , 6829369017
n×2
40862778
n×3
61294167
n×4
81725556
n×5
102156945
n÷2
10215694.5
n÷3
6810463
n÷3
5107847.25
n÷5
4086277.8
n2
417441656469321
n3
8.5289128681291E+21
n4
1.7425753655585E+29
n5
3.5603235155543E+36
2 √n
4520.1094013309
3 √n
273.37951215945
4 √n
67.231758874292
5 √n
28.977410858575
1 , 3 , 11 , 33 , 103 , 309 , 1133 , 3399 , 6011 , 18033 , 66121 , 198363 , 619133 , 1857399 , 6810463 , 20431389
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
-20431388
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 20431389 can be divided by 16 positive divisors.
The sum of these divisors (counting 20431389) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101111100001000011101
3
Ternary
1102110000121010
4
Quaternary
1031330020131
5
Quinary
20212301024
6
Senary
2005525433
8
Octal
115741035
10
Decimal
20431389
12
Duodecimal
6a13879
16
Hexadecimal
137c21d
20
Vigesimal
67di99
36
Base36
c5wyl
md5
90c04b2484fd5efeef960d665b82cd9b
sha1
6f4b5c696ded848f400842547bfd3c1983c6e6c5
sha256
a0405e310a7bbf29b1fb54db2fecbc4dadf8d95b9e59ef9934306aea7a974002
sha512
d5eda621dd69e29e203d569ba21605bdf2271efef8a8572f742b70fefdb9ebd79533f8fc2503e4c9da9542cc82cffa85fd60a337fab9a478ba953b79163aeef4
ripemd-160
2b477de7f86ac1b5a98bf9912b8819d32069b17e
Diameter
40862778
Circumference
128374203.17007
Area
1.3114316412664E+15
Volume
3.5725826679496E+22
Surface area
5.2457265650655E+15
Circumference
128374203.17007
Perimeter
81725556
Area
417441656469321
Diagonal
28894347.42192
Surface area
2504649938815926
Volume
8.5289128681291E+21
Space diagonal
35388203.817204
Perimeter
61294167
Area
1.8075753955014E+14
Altitude
17694101.908602
Surface area
1.8075753955014E+14
Volume
1.0051420208672E+21
Height
9631449.1406402