28105715 is an odd 8-digits composite number following 28105714
and preceding 28105716 . In scientific notation, it is written as 2.8105715 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 20440480 positive integers (up to 28105715) that are relatively prime to 28105715.
28105715 has 8 divisors, whose sum is 36793008
The reverse of 28105715 is 51750182
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-eight million one hundred five thousand seven hundred fifteen
Scientific notation
2.8105715 × 10^7
Engineering notation
2.8105715 × 10^6
Prime Factorization
11 × 5 × 511013
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28105715
Product of the distinct prime numbers
The prime factorization of 28105715 is 11 × 5 × 511013.
Since it has a total of 3 prime factors.
1 , 2 , 65 , 15 , 799 , 198 , 2954 , 1742 , 22273 , 90855 , 57512 , 713559 , 6967812 , 4592045 , 70037475 , 25017660 , 671523272 , 178290874 , 6840989161 , 8042729350
n×2
56211430
n×3
84317145
n×4
112422860
n×5
140528575
n÷2
14052857.5
n÷3
9368571.6666667
n÷3
7026428.75
n÷5
5621143
n2
789931215661225
n3
2.2201581616978E+22
n4
6.2399132547602E+29
n5
1.7537722356301E+37
2 √n
5301.4823398744
3 √n
304.04057558012
4 √n
72.811278933105
5 √n
30.885805174221
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
-28105714
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 28105715 can be divided by 8 positive divisors.
The sum of these divisors (counting 28105715) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011001101101111110011
3
Ternary
1221212220210102
4
Quaternary
1223031233303
5
Quinary
24143340330
6
Senary
2442223015
8
Octal
153155763
10
Decimal
28105715
12
Duodecimal
94b4a6b
16
Hexadecimal
1acdbf3
20
Vigesimal
8fd45f
36
Base36
gqeib
md5
1ed116f96e084cda30d256ee7583bf28
sha1
96225604c24ebeff08c804789045987b64d5a842
sha256
876aa439cbe93bebca53ef82d518f9b2894c155f5e4ed2fe151d275085ac099c
sha512
cc6585b3660c2d322a894a316e0e13871eabb24f6ffbef183183cdcc5c2074c487f6ca8ec759dc0d1d0145285c6d42ee53a1106148edb0ec6c539562672ec4a2
ripemd-160
210ba984c9395f4c4c623a10a1e598838ec3801d
Diameter
56211430
Circumference
176593415.53578
Area
2.4816421039626E+15
Volume
9.2997767607963E+22
Surface area
9.9265684158502E+15
Circumference
176593415.53578
Perimeter
112422860
Area
789931215661225
Diagonal
39747483.333193
Surface area
4739587293967350
Volume
2.2201581616978E+22
Space diagonal
48680526.363051
Perimeter
84317145
Area
3.4205025000247E+14
Altitude
24340263.181525
Surface area
3.4205025000247E+14
Volume
2.6164814857386E+21
Height
13249161.111064