20728306 is an even 8-digits composite number following 20728305
and preceding 20728307 . In scientific notation, it is written as 2.0728306 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 10357620 positive integers (up to 20728306) that are relatively prime to 20728306.
20728306 has 8 divisors, whose sum is 31112064
The reverse of 20728306 is 60382702
Previous prime number is 2711
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred twenty-eight thousand three hundred six
Scientific notation
2.0728306 × 10^7
Engineering notation
2.0728306 × 10^6
Prime Factorization
2 × 2711 × 3823
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20728306
Product of the distinct prime numbers
The prime factorization of 20728306 is 2 × 2711 × 3823.
Since it has a total of 3 prime factors.
4 , 10 , 81 , 97 , 993 , 837 , 8932 , 5615 , 12900 , 6501 , 765534 , 362805 , 2042591 , 1287961 , 75589070 , 32912642 , 11834541 , 574753090 , 1290565696 , 6377051258
n×2
41456612
n×3
62184918
n×4
82913224
n×5
103641530
n÷2
10364153
n÷3
6909435.3333333
n÷3
5182076.5
n÷5
4145661.2
n2
429662669629636
n3
8.90617929286E+21
n4
1.8461000967327E+29
n5
3.8266527711704E+36
2 √n
4552.834941001
3 √n
274.69743472157
4 √n
67.474698524714
5 √n
29.061147735998
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20728305
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20728306 can be divided by 8 positive divisors.
The sum of these divisors (counting 20728306) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000100100111110010
3
Ternary
1110000002220001
4
Quaternary
1033010213302
5
Quinary
20301301211
6
Senary
2020140214
8
Octal
117044762
10
Decimal
20728306
12
Duodecimal
6b3766a
16
Hexadecimal
13c49f2
20
Vigesimal
69b0f6
36
Base36
cca2a
md5
d39acf2e18acfad7473ded7f7c30814f
sha1
e6145fc4f1d91523bc0d583f32d546c7224848d5
sha256
6eb6c82393285fc307408437f3065dfc41f0210c1587dbecec660123d0a1cf68
sha512
3b9395c24ffc6a3898b66ce47de407310b82f984e5df826b3990d94f67fffe3f69342a3b162aea803f63e240ee05be095a0cf771b9dbe14a915ed57018a608e5
ripemd-160
e017e5fcc351d4c0e2f6158b67a426384d6b452f
Diameter
41456612
Circumference
130239787.70192
Area
1.3498250864302E+15
Volume
3.7306116584003E+22
Surface area
5.399300345721E+15
Circumference
130239787.70192
Perimeter
82913224
Area
429662669629636
Diagonal
29314251.47022
Surface area
2577976017777816
Volume
8.90617929286E+21
Space diagonal
35902479.146835
Perimeter
62184918
Area
1.8604939347855E+14
Altitude
17951239.573417
Surface area
1.8604939347855E+14
Volume
1.0496032954074E+21
Height
9771417.1567399