28720306 is an even 8-digits composite number following 28720305
and preceding 28720307 . In scientific notation, it is written as 2.8720306 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 14232960 positive integers (up to 28720306) that are relatively prime to 28720306.
28720306 has 8 divisors, whose sum is 43462044
The reverse of 28720306 is 60302782
Previous prime number is 113
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-eight million seven hundred twenty thousand three hundred six
Scientific notation
2.8720306 × 10^7
Engineering notation
2.8720306 × 10^6
Prime Factorization
2 × 113 × 127081
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28720306
Product of the distinct prime numbers
The prime factorization of 28720306 is 2 × 113 × 127081.
Since it has a total of 3 prime factors.
10 , 6 , 64 , 23 , 108 , 167 , 8204 , 1871 , 66879 , 35290 , 779847 , 331820 , 1088975 , 1209489 , 60633368 , 20411222 , 65695090 , 124380129 , 9650141999 , 6310902878
n×2
57440612
n×3
86160918
n×4
114881224
n×5
143601530
n÷2
14360153
n÷3
9573435.3333333
n÷3
7180076.5
n÷5
5744061.2
n2
824855976733636
n3
2.3690116057719E+22
n4
6.803873823532E+29
n5
1.9540933819723E+37
2 √n
5359.1329522601
3 √n
306.24077906431
4 √n
73.206099146588
5 √n
31.019715659213
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
-28720305
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 28720306 can be divided by 8 positive divisors.
The sum of these divisors (counting 28720306) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101100011110010110010
3
Ternary
2000001010212001
4
Quaternary
1231203302302
5
Quinary
24323022211
6
Senary
2503324214
8
Octal
155436262
10
Decimal
28720306
12
Duodecimal
975066a
16
Hexadecimal
1b63cb2
20
Vigesimal
8ja0f6
36
Base36
h3kqa
md5
98132780b8078baf0afe1515b6aa40ff
sha1
bf5f54fab2bc9cb1d9a8397fde0cc45a3d168f21
sha256
e1fcf71a1656b25af7a873319698e3ac875c166cefb6304403e80f7c7637268e
sha512
99e556f473eb4ceca20a47ee4ca2ef853d4234b04185fd2d119838915a4ddab8ef6aa25e5b9887f7a6bb7e2c4915cac01a12f5ee7aa800910335924492dd75c7
ripemd-160
047f24cd385a1d0cca1a424c26f34ba7725669cc
Diameter
57440612
Circumference
180455004.6769
Area
2.591361476776E+15
Volume
9.9232926092826E+22
Surface area
1.0365445907104E+16
Circumference
180455004.6769
Perimeter
114881224
Area
824855976733636
Diagonal
40616646.260705
Surface area
4949135860401816
Volume
2.3690116057719E+22
Space diagonal
49745029.200925
Perimeter
86160918
Area
3.5717311515738E+14
Altitude
24872514.600463
Surface area
3.5717311515738E+14
Volume
2.7919069519182E+21
Height
13538882.086902