28751009 is an odd 8-digits composite number following 28751008
and preceding 28751010 . In scientific notation, it is written as 2.8751009 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 23346576 positive integers (up to 28751009) that are relatively prime to 28751009.
28751009 has 8 divisors, whose sum is 34587840
The reverse of 28751009 is 90015782
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million seven hundred fifty-one thousand nine
Scientific notation
2.8751009 × 10^7
Engineering notation
2.8751009 × 10^6
Prime Factorization
7 × 19 × 216173
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28751009
Product of the distinct prime numbers
The prime factorization of 28751009 is 7 × 19 × 216173.
Since it has a total of 3 prime factors.
4 , 3 , 70 , 32 , 422 , 634 , 3719 , 4239 , 40300 , 51202 , 349197 , 80913 , 5259456 , 1422270 , 10140397 , 50382982 , 52147304 , 293011671 , 8735430136 , 3681104184
n×2
57502018
n×3
86253027
n×4
115004036
n×5
143755045
n÷2
14375504.5
n÷3
9583669.6666667
n÷3
7187752.25
n÷5
5750201.8
n2
826620518518081
n3
2.3766173967498E+22
n4
6.833014816351E+29
n5
1.9645607048204E+37
2 √n
5361.9967362914
3 √n
306.34986752704
4 √n
73.225656270814
5 √n
31.026345054682
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
-28751008
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 28751009 can be divided by 8 positive divisors.
The sum of these divisors (counting 28751009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101101011010010100001
3
Ternary
2000002200222012
4
Quaternary
1231223102201
5
Quinary
24330013014
6
Senary
2504122305
8
Octal
155532241
10
Decimal
28751009
12
Duodecimal
9766395
16
Hexadecimal
1b6b4a1
20
Vigesimal
8jdha9
36
Base36
h48f5
md5
fe3078d3d02f7b33f5416d202ecee2b2
sha1
66a8778b98755a6cd9604268b5a8d703e9344910
sha256
d3e236471a58a3866f021e3f98fbcc5645c57e48e6f27a42436168581c27331a
sha512
92d888c72a946c2e4423e0e1463342c88c28d331952e4ec2acc63108fb080460806982b5340530561158546563ccdc6dc617d6200b2bb3d015015455bd31e207
ripemd-160
274cf4afe758430104e6a32733cb31533706a332
Diameter
57502018
Circumference
180647917.31539
Area
2.596904948283E+15
Volume
9.9551516720305E+22
Surface area
1.0387619793132E+16
Circumference
180647917.31539
Perimeter
115004036
Area
826620518518081
Diagonal
40660066.859711
Surface area
4959723111108486
Volume
2.3766173967498E+22
Space diagonal
49798208.35687
Perimeter
86253027
Area
3.5793718416306E+14
Altitude
24899104.178435
Surface area
3.5793718416306E+14
Volume
2.8008704625462E+21
Height
13553355.619904