28118900 is an even 8-digits composite number following 28118899
and preceding 28118901 . In scientific notation, it is written as 2.8118900 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 18 positive divisors.
There are 11247520 positive integers (up to 28118900) that are relatively prime to 28118900.
28118900 has 18 divisors, whose sum is 61018230
The reverse of 28118900 is 00981182
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-eight million one hundred eighteen thousand nine hundred
Scientific notation
2.8118900 × 10^7
Engineering notation
2.8118900 × 10^6
Prime Factorization
2 × 2 × 5 × 5 × 281189
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2811890
Product of the distinct prime numbers
The prime factorization of 28118900 is 2 × 2 × 5 × 5 × 281189.
Since it has a total of 5 prime factors.
2 , 6 , 1 , 1 , 347 , 885 , 8838 , 3513 , 81099 , 59488 , 339596 , 301101 , 2795202 , 8708175 , 6553994 , 18400043 , 234849504 , 431470238 , 837905218 , 4749345301
n×2
56237800
n×3
84356700
n×4
112475600
n×5
140594500
n÷2
14059450
n÷3
9372966.6666667
n÷3
7029725
n÷5
5623780
n2
790672537210000
n3
2.2232842006554E+22
n4
6.251630610981E+29
n5
1.7578897598711E+37
2 √n
5302.7257141964
3 √n
304.08811215509
4 √n
72.81981676849
5 √n
30.888702470708
1 , 2 , 4 , 5 , 10 , 20 , 25 , 50 , 100 , 281189 , 562378 , 1124756 , 1405945 , 2811890 , 5623780 , 7029725 , 14059450 , 28118900
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28118899
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28118900 can be divided by 18 positive divisors.
The sum of these divisors (counting 28118900) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1101011010000111101110100
3
Ternary
1221220120212202
4
Quaternary
1223100331310
5
Quinary
24144301100
6
Senary
2442404032
8
Octal
153207564
10
Decimal
28118900
12
Duodecimal
9500618
16
Hexadecimal
1ad0f74
20
Vigesimal
8feh50
36
Base36
gqook
md5
2d15571a9d815778e15f5908e33227a9
sha1
857df24b3dadafff0bd5dd91a3b8555a633ae018
sha256
34560239f889a318f83374a9c15792bbadc6a3cea0242b89250f032135339e08
sha512
378b8148e8291c694121fa98d5cf143c50ef1bacfdd2d6dfc45108cadbdb94611f95084aee0259891fc93cb071b5164f2ac26113c3632a991db5ac3437c0129d
ripemd-160
78da46497930573a0f8a00139fbc7e04fe999e56
Diameter
56237800
Circumference
176676259.33405
Area
2.4839710342941E+15
Volume
9.3128710821618E+22
Surface area
9.9358841371766E+15
Circumference
176676259.33405
Perimeter
112475600
Area
790672537210000
Diagonal
39766129.739013
Surface area
4744035223260000
Volume
2.2232842006554E+22
Space diagonal
48703363.452949
Perimeter
84356700
Area
3.4237125164928E+14
Altitude
24351681.726474
Surface area
3.4237125164928E+14
Volume
2.6201655579806E+21
Height
13255376.579671