28278515 is an odd 8-digits composite number following 28278514
and preceding 28278516 . In scientific notation, it is written as 2.8278515 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 22349920 positive integers (up to 28278515) that are relatively prime to 28278515.
28278515 has 8 divisors, whose sum is 34343568
The reverse of 28278515 is 51587282
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million two hundred seventy-eight thousand five hundred fifteen
Scientific notation
2.8278515 × 10^7
Engineering notation
2.8278515 × 10^6
Prime Factorization
5 × 83 × 68141
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28278515
Product of the distinct prime numbers
The prime factorization of 28278515 is 5 × 83 × 68141.
Since it has a total of 3 prime factors.
5 , 10 , 99 , 12 , 273 , 480 , 6713 , 114 , 52257 , 73107 , 865085 , 27074 , 4091834 , 2202775 , 67333993 , 66253774 , 455725411 , 791071390 , 2369360413 , 8304759747
n×2
56557030
n×3
84835545
n×4
113114060
n×5
141392575
n÷2
14139257.5
n÷3
9426171.6666667
n÷3
7069628.75
n÷5
5655703
n2
799674410605225
n3
2.2613604815416E+22
n4
6.3947916297681E+29
n5
1.8083521102427E+37
2 √n
5317.7546953578
3 √n
304.66240528801
4 √n
72.922936689068
5 √n
30.923690636086
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
-28278514
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 28278515 can be divided by 8 positive divisors.
The sum of these divisors (counting 28278515) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011110111111011110011
3
Ternary
1222012200211102
4
Quaternary
1223313323303
5
Quinary
24214403030
6
Senary
2450035015
8
Octal
153677363
10
Decimal
28278515
12
Duodecimal
9578a6b
16
Hexadecimal
1af7ef3
20
Vigesimal
8geg5f
36
Base36
gu3ub
md5
926c0ccdd64dc8c6069d91990dfa60ac
sha1
3655c5896c46393f4c90a79d7ca57b76d81460f5
sha256
1a4fc22e54b1e2bef1bb9fd5b58d9e0802b7c65ed11c701cba8d98809e9373b2
sha512
3799d19d1ba3c257dcc8aec010a79cdd39fafc2082d754d26a26ec0bb1405a53b5c7e88311175afc683d3414a36c10c5d2c186abb3723f438d54cdd2838847f8
ripemd-160
3f36241e0cff10e024790ab2e81466ee1c1efb55
Diameter
56557030
Circumference
177679149.95686
Area
2.5122512536211E+15
Volume
9.4723646345725E+22
Surface area
1.0049005014484E+16
Circumference
177679149.95686
Perimeter
113114060
Area
799674410605225
Diagonal
39991859.436771
Surface area
4798046463631350
Volume
2.2613604815416E+22
Space diagonal
48979824.742599
Perimeter
84835545
Area
3.4626917717024E+14
Altitude
24489912.371299
Surface area
3.4626917717024E+14
Volume
2.6650388853422E+21
Height
13330619.812257