20402388 is an even 8-digits composite number following 20402387
and preceding 20402389 . In scientific notation, it is written as 2.0402388 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 6800760 positive integers (up to 20402388) that are relatively prime to 20402388.
20402388 has 12 divisors, whose sum is 37026752
The reverse of 20402388 is 88320402
Previous prime number is 27
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million four hundred two thousand three hundred eighty-eight
Scientific notation
2.0402388 × 10^7
Engineering notation
2.0402388 × 10^6
Prime Factorization
2 × 2 × 27 × 188911
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10201194
Product of the distinct prime numbers
The prime factorization of 20402388 is 2 × 2 × 27 × 188911.
Since it has a total of 4 prime factors.
1 , 9 , 12 , 49 , 144 , 815 , 9129 , 8906 , 21002 , 27623 , 261333 , 577040 , 3752259 , 4369113 , 17747499 , 41114314 , 86416783 , 125314140 , 7259098186 , 882104775
n×2
40804776
n×3
61207164
n×4
81609552
n×5
102011940
n÷2
10201194
n÷3
6800796
n÷3
5100597
n÷5
4080477.6
n2
416257436102544
n3
8.4926457192493E+21
n4
1.7327025311066E+29
n5
3.535126932822E+36
2 √n
4516.900264562
3 √n
273.25010288932
4 √n
67.20788841023
5 √n
28.969179881806
1 , 2 , 4 , 27 , 54 , 108 , 188911 , 377822 , 755644 , 5100597 , 10201194 , 20402388
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20402387
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20402388 can be divided by 12 positive divisors.
The sum of these divisors (counting 20402388) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110101000011010100
3
Ternary
1102101112211000
4
Quaternary
1031311003110
5
Quinary
20210334023
6
Senary
2005143300
8
Octal
115650324
10
Decimal
20402388
12
Duodecimal
69bab30
16
Hexadecimal
13750d4
20
Vigesimal
67a5j8
36
Base36
c5al0
md5
072f9925bba70c6bda1d278fdc8d0f2c
sha1
6a77295a18915d10f082612a9bb8f35376425678
sha256
710c1cce3c19ab4f04542b8776e1f023409270adbdecd392a9313c129dbbd151
sha512
6c55ce6f3d2a13abafcf480fee8aeefeebcb70c52ce5dd917303ba9d44a14e7ebc0c93341c72a9f52fd89674909e0174c7950e80f5ee3ffe6b458d662cd5fe9f
ripemd-160
0c6d0074dfc512edc02e5d2b97d70f0349e76d61
Diameter
40804776
Circumference
128191984.51298
Area
1.3077113032619E+15
Volume
3.5573911201513E+22
Surface area
5.2308452130475E+15
Circumference
128191984.51298
Perimeter
81609552
Area
416257436102544
Diagonal
28853333.814398
Surface area
2497544616615264
Volume
8.4926457192493E+21
Space diagonal
35337972.611734
Perimeter
61207164
Area
1.8024475708949E+14
Altitude
17668986.305867
Surface area
1.8024475708949E+14
Volume
1.0008678963827E+21
Height
9617777.9381327