20128743 is an odd 8-digits composite number following 20128742
and preceding 20128744 . In scientific notation, it is written as 2.0128743 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13215312 positive integers (up to 20128743) that are relatively prime to 20128743.
20128743 has 16 divisors, whose sum is 28255360
The reverse of 20128743 is 34782102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred twenty-eight thousand seven hundred forty-three
Scientific notation
2.0128743 × 10^7
Engineering notation
2.0128743 × 10^6
Prime Factorization
27 × 3 × 67 × 3709
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20128743
Product of the distinct prime numbers
The prime factorization of 20128743 is 27 × 3 × 67 × 3709.
Since it has a total of 4 prime factors.
7 , 9 , 51 , 73 , 866 , 388 , 7705 , 4725 , 47917 , 98212 , 380754 , 221682 , 525989 , 8262549 , 29704301 , 34649404 , 248269664 , 360840963 , 3626033165 , 2260074825
n×2
40257486
n×3
60386229
n×4
80514972
n×5
100643715
n÷2
10064371.5
n÷3
6709581
n÷3
5032185.75
n÷5
4025748.6
n2
405166294760049
n3
8.1554882194873E+21
n4
1.6415972640959E+29
n5
3.3043289438489E+36
2 √n
4486.5067703058
3 √n
272.02295347674
4 √n
66.981391224024
5 √n
28.891050339092
1 , 3 , 27 , 67 , 81 , 201 , 1809 , 3709 , 5427 , 11127 , 100143 , 248503 , 300429 , 745509 , 6709581 , 20128743
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
-20128742
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 20128743 can be divided by 16 positive divisors.
The sum of these divisors (counting 20128743) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110010001111100111
3
Ternary
1101212122110000
4
Quaternary
1030302033213
5
Quinary
20123104433
6
Senary
1555232343
8
Octal
114621747
10
Decimal
20128743
12
Duodecimal
68a86b3
16
Hexadecimal
13323e7
20
Vigesimal
65g1h3
36
Base36
bzffr
md5
611f9052841e9ffe39879ca508ef763c
sha1
086a3c38246cf9071bd04b386a2e1b6fcdc6d071
sha256
c5b7789c3a6445ad584f59234b75e808bb84c88a71c34e1cd190d04025b15a96
sha512
b4f76d1f61f70f3433fc62169e2be74b39f5502dad0f9dbd72eb6bcc7da07bc7148445e0c77c918931bfef00d33fca3d9323541defa8ffcc9d30426b4ba0e182
ripemd-160
665316be8085c295399eab91983ed7dd15488d81
Diameter
40257486
Circumference
126472622.26959
Area
1.2728674551004E+15
Volume
3.4161629169039E+22
Surface area
5.0914698204015E+15
Circumference
126472622.26959
Perimeter
80514972
Area
405166294760049
Diagonal
28466341.344123
Surface area
2430997768560294
Volume
8.1554882194873E+21
Space diagonal
34864005.568496
Perimeter
60386229
Area
1.7544215200971E+14
Altitude
17432002.784248
Surface area
1.7544215200971E+14
Volume
9.6113350398108E+20
Height
9488780.4480408