28072015 is an odd 8-digits composite number following 28072014
and preceding 28072016 . In scientific notation, it is written as 2.8072015 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 21135488 positive integers (up to 28072015) that are relatively prime to 28072015.
28072015 has 12 divisors, whose sum is 35786376
The reverse of 28072015 is 51027082
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-eight million seventy-two thousand fifteen
Scientific notation
2.8072015 × 10^7
Engineering notation
2.8072015 × 10^6
Prime Factorization
5 × 17 × 17 × 19427
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1651295
Product of the distinct prime numbers
The prime factorization of 28072015 is 5 × 17 × 17 × 19427.
Since it has a total of 4 prime factors.
7 , 6 , 77 , 79 , 182 , 329 , 6495 , 694 , 66023 , 12610 , 656467 , 446517 , 5739574 , 6669131 , 89005580 , 74563435 , 720252459 , 859064647 , 3895904662 , 1256588461
n×2
56144030
n×3
84216045
n×4
112288060
n×5
140360075
n÷2
14036007.5
n÷3
9357338.3333333
n÷3
7018003.75
n÷5
5614403
n2
788038026160225
n3
2.212181529094E+22
n4
6.210039306745E+29
n5
1.7432831656954E+37
2 √n
5298.3030302164
3 √n
303.91900759616
4 √n
72.789443123412
5 √n
30.878394928975
1 , 5 , 17 , 85 , 289 , 1445 , 19427 , 97135 , 330259 , 1651295 , 5614403 , 28072015
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
-28072014
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 28072015 can be divided by 12 positive divisors.
The sum of these divisors (counting 28072015) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101011000101100001001111
3
Ternary
1221211012120021
4
Quaternary
1223011201033
5
Quinary
24141301030
6
Senary
2441403011
8
Octal
153054117
10
Decimal
28072015
12
Duodecimal
9499467
16
Hexadecimal
1ac584f
20
Vigesimal
8f900f
36
Base36
gpoi7
md5
287c49fa75598958ca086b013f69c555
sha1
9ea146d63bba640327e86894ec38b178fab6cf5d
sha256
ac95e7e481cbbacaded32f11a9ce62aebbc3928524e5a31aa1a993f8dc3066ba
sha512
faf236b7b037ea60acbef9b2e0550dfd47f2e8d6ef3d7d365bb326ab752d80b3096bc365039299df178171bcbe768067aa1d5376c2045ca296b8ef50e7d3bb76
ripemd-160
b03645def2e656527bfec0c3eb0e9104db5821fc
Diameter
56144030
Circumference
176381672.19092
Area
2.4756944737344E+15
Volume
9.2663643202784E+22
Surface area
9.9027778949375E+15
Circumference
176381672.19092
Perimeter
112288060
Area
788038026160225
Diagonal
39699824.336141
Surface area
4728228156961350
Volume
2.212181529094E+22
Space diagonal
48622156.250836
Perimeter
84216045
Area
3.4123047490145E+14
Altitude
24311078.125418
Surface area
3.4123047490145E+14
Volume
2.6070809340633E+21
Height
13233274.778714