28072008 is an even 8-digits composite number following 28072007
and preceding 28072009 . In scientific notation, it is written as 2.8072008 × 10^7.
The sum of its digits is 27. It has a total of 6 prime factors and 32 positive divisors.
There are 9357120 positive integers (up to 28072008) that are relatively prime to 28072008.
28072008 has 32 divisors, whose sum is 72780960
The reverse of 28072008 is 80027082
Previous prime number is 27
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-eight million seventy-two thousand eight
Scientific notation
2.8072008 × 10^7
Engineering notation
2.8072008 × 10^6
Prime Factorization
2 × 2 × 2 × 3 × 27 × 43321
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
7018002
Product of the distinct prime numbers
The prime factorization of 28072008 is 2 × 2 × 2 × 3 × 27 × 43321.
Since it has a total of 6 prime factors.
4 , 6 , 4 , 31 , 389 , 317 , 276 , 6533 , 35365 , 51795 , 654494 , 817957 , 1244601 , 6436486 , 900592 , 63960872 , 172793708 , 561941592 , 1672297270 , 7105916705
n×2
56144016
n×3
84216024
n×4
112288032
n×5
140360040
n÷2
14036004
n÷3
9357336
n÷3
7018002
n÷5
5614401.6
n2
788037633152064
n3
2.2121798742146E+22
n4
6.2100331126391E+29
n5
1.7432809921827E+37
2 √n
5298.3023696275
3 √n
303.91898233455
4 √n
72.789438585742
5 √n
30.878393389016
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 27 , 54 , 81 , 108 , 162 , 216 , 324 , 648 , 43321 , 86642 , 129963 , 173284 , 259926 , 346568 , 519852 , 1039704 , 1169667 , 2339334 , 3509001 , 4678668 , 7018002 , 9357336 , 14036004 , 28072008
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28072007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28072008 can be divided by 32 positive divisors.
The sum of these divisors (counting 28072008) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101011000101100001001000
3
Ternary
1221211012120000
4
Quaternary
1223011201020
5
Quinary
24141301013
6
Senary
2441403000
8
Octal
153054110
10
Decimal
28072008
12
Duodecimal
9499460
16
Hexadecimal
1ac5848
20
Vigesimal
8f9008
36
Base36
gpoi0
md5
2b5bdc0364dde62cd90b4f037a5c3ec6
sha1
e9db4c694ec06e25daad7693124637a0ac0318dc
sha256
9392c02d456d936bfd140323cad8580f605b8b165a9593eccc17d628fb81927d
sha512
c1ecbe04e9c5d28f84b8c02b3d2b3a73ff680c01124253646cf214ef3436e914c828008ef77b565751daa52d4934f1bbe459ee42951473fd79137157b07b3da9
ripemd-160
98e9ea514878324d7796cabb53c9ee00cdc507f2
Diameter
56144016
Circumference
176381628.20863
Area
2.4756932390628E+15
Volume
9.2663573883356E+22
Surface area
9.9027729562512E+15
Circumference
176381628.20863
Perimeter
112288032
Area
788037633152064
Diagonal
39699814.436646
Surface area
4728225798912384
Volume
2.2121798742146E+22
Space diagonal
48622144.12648
Perimeter
84216024
Area
3.4123030472392E+14
Altitude
24311072.06324
Surface area
3.4123030472392E+14
Volume
2.6070789837692E+21
Height
13233271.478882