28103491 is an odd 8-digits composite number following 28103490
and preceding 28103492 . In scientific notation, it is written as 2.8103491 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 25308480 positive integers (up to 28103491) that are relatively prime to 28103491.
28103491 has 8 divisors, whose sum is 31004064
The reverse of 28103491 is 19430182
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-eight million one hundred three thousand four hundred ninety-one
Scientific notation
2.8103491 × 10^7
Engineering notation
2.8103491 × 10^6
Prime Factorization
13 × 41 × 52727
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28103491
Product of the distinct prime numbers
The prime factorization of 28103491 is 13 × 41 × 52727.
Since it has a total of 3 prime factors.
5 , 9 , 30 , 22 , 999 , 215 , 3543 , 6302 , 68811 , 48888 , 942425 , 45497 , 4417839 , 9271679 , 35075680 , 28640080 , 615187889 , 416612508 , 7257769536 , 2565867938
n×2
56206982
n×3
84310473
n×4
112413964
n×5
140517455
n÷2
14051745.5
n÷3
9367830.3333333
n÷3
7025872.75
n÷5
5620698.2
n2
789806206387081
n3
2.2196311612943E+22
n4
6.2379384364755E+29
n5
1.7530784670804E+37
2 √n
5301.2725830691
3 √n
304.03255581052
4 √n
72.809838504622
5 √n
30.885316361145
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
-28103490
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 28103491 can be divided by 8 positive divisors.
The sum of these divisors (counting 28103491) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011001101001101000011
3
Ternary
1221212210202001
4
Quaternary
1223031031003
5
Quinary
24143302431
6
Senary
2442204431
8
Octal
153151503
10
Decimal
28103491
12
Duodecimal
94b3717
16
Hexadecimal
1acd343
20
Vigesimal
8fcieb
36
Base36
gqcsj
md5
44d78950fa0d09aa1fb0d851282468a0
sha1
d057309ffdd332fa805d1e10a50e4d884087df2a
sha256
65b3e731fc70116f1e05e30cfed3209378045080633cb0c4efa89f71be146bd6
sha512
b17e9f6a7eb3965ae92bccf86020e0b5d024a1172247dbb4c9a874c4530049dc6aa5259923dba5909a08b87eee580870286336e556ad77e126458145b044d092
ripemd-160
1571c4b64b3d6d23964d5e3b1f5626951189060d
Diameter
56206982
Circumference
176579441.73165
Area
2.4812493757453E+15
Volume
9.2975692666684E+22
Surface area
9.9249975029811E+15
Circumference
176579441.73165
Perimeter
112413964
Area
789806206387081
Diagonal
39744338.12223
Surface area
4738837238322486
Volume
2.2196311612943E+22
Space diagonal
48676674.282055
Perimeter
84310473
Area
3.4199611939891E+14
Altitude
24338337.141027
Surface area
3.4199611939891E+14
Volume
2.615860409807E+21
Height
13248112.70741