28388615 is an odd 8-digits composite number following 28388614
and preceding 28388616 . In scientific notation, it is written as 2.8388615 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 22710888 positive integers (up to 28388615) that are relatively prime to 28388615.
28388615 has 4 divisors, whose sum is 34066344
The reverse of 28388615 is 51688382
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-eight million three hundred eighty-eight thousand six hundred fifteen
Scientific notation
2.8388615 × 10^7
Engineering notation
2.8388615 × 10^6
Prime Factorization
5 × 5677723
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28388615
Product of the distinct prime numbers
The prime factorization of 28388615 is 5 × 5677723.
Since it has a total of 2 prime factors.
2 , 1 , 15 , 4 , 931 , 428 , 6498 , 9221 , 54284 , 8790 , 425261 , 224012 , 5447524 , 4949990 , 32191420 , 71277629 , 313851041 , 542055376 , 5235667034 , 315084271
n×2
56777230
n×3
85165845
n×4
113554460
n×5
141943075
n÷2
14194307.5
n÷3
9462871.6666667
n÷3
7097153.75
n÷5
5677723
n2
805913461618225
n3
2.2878766985197E+22
n4
6.4949650761747E+29
n5
1.8438306298597E+37
2 √n
5328.0967521245
3 √n
305.05728566552
4 √n
72.99381310854
5 √n
30.947732975864
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28388614
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28388615 can be divided by 4 positive divisors.
The sum of these divisors (counting 28388615) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010010110100000111
3
Ternary
1222102021212012
4
Quaternary
1230102310013
5
Quinary
24231413430
6
Senary
2452244435
8
Octal
154226407
10
Decimal
28388615
12
Duodecimal
961071b
16
Hexadecimal
1b12d07
20
Vigesimal
8h8baf
36
Base36
gwgsn
md5
eba6f657d0d5657458b2a78e2133675b
sha1
3b20286ec27288c25afeb4803aed1820be5d0ee8
sha256
709c0f1c6808aeec7a2eb6a8cabb479b50fab08588a98bc71cff72ccf4c94d89
sha512
322667b527daaa2251d969742b1632f315fe08e039d72edaddcb54ac8e3c587978d313d46711c1d8f292ef203cccc7bc0a8b40548625e9e6c94f6f847e1a4a7c
ripemd-160
3401a896be14174f99b2037d8b8f5d63d6bf9698
Diameter
56777230
Circumference
178370928.65918
Area
2.5318518104489E+15
Volume
9.5834355045184E+22
Surface area
1.0127407241796E+16
Circumference
178370928.65918
Perimeter
113554460
Area
805913461618225
Diagonal
40147564.349988
Surface area
4835480769709350
Volume
2.2878766985197E+22
Space diagonal
49170523.536512
Perimeter
85165845
Area
3.4897076550662E+14
Altitude
24585261.768256
Surface area
3.4897076550662E+14
Volume
2.6962885467366E+21
Height
13382521.449996