28688313 is an odd 8-digits composite number following 28688312
and preceding 28688314 . In scientific notation, it is written as 2.8688313 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 19125540 positive integers (up to 28688313) that are relatively prime to 28688313.
28688313 has 4 divisors, whose sum is 38251088
The reverse of 28688313 is 31388682
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million six hundred eighty-eight thousand three hundred thirteen
Scientific notation
2.8688313 × 10^7
Engineering notation
2.8688313 × 10^6
Prime Factorization
3 × 9562771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28688313
Product of the distinct prime numbers
The prime factorization of 28688313 is 3 × 9562771.
Since it has a total of 2 prime factors.
8 , 4 , 19 , 40 , 626 , 374 , 9 , 8454 , 98586 , 96556 , 995715 , 145941 , 1709215 , 433619 , 74945544 , 91739755 , 950933797 , 262047248 , 8929389407 , 786832804
n×2
57376626
n×3
86064939
n×4
114753252
n×5
143441565
n÷2
14344156.5
n÷3
9562771
n÷3
7172078.25
n÷5
5737662.6
n2
823019302785969
n3
2.3611035363366E+22
n4
6.773607727583E+29
n5
1.9432337862812E+37
2 √n
5356.14721605
3 √n
306.12702445578
4 √n
73.185703631584
5 √n
31.012801692079
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
-28688312
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 28688313 can be divided by 4 positive divisors.
The sum of these divisors (counting 28688313) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101011011111110111001
3
Ternary
1222222111222010
4
Quaternary
1231123332321
5
Quinary
24321011223
6
Senary
2502520133
8
Octal
155337671
10
Decimal
28688313
12
Duodecimal
9736049
16
Hexadecimal
1b5bfb9
20
Vigesimal
8j60fd
36
Base36
h2w1l
md5
708f22664ef06a74b3cce31a2d4e9582
sha1
df1cc585ce00ba1dc95adda1d37bbb2039268205
sha256
ef4482721dbe0d97154ac632b9d2472698a9fe6d60a22bdb1611f42c9ebfaf9b
sha512
2868104a04cdcacf995fdaa94ca0efc9c1287f62ef5b8aeb3cf876a7efc02d76c08a5164955529f23359b4675d6948a8beb25944ef3583535548b383a718a982
ripemd-160
fa181191f8af018c2f7cce217e7922c5db5a4b7f
Diameter
57376626
Circumference
180253986.72937
Area
2.585591395395E+15
Volume
9.8901673654931E+22
Surface area
1.034236558158E+16
Circumference
180253986.72937
Perimeter
114753252
Area
823019302785969
Diagonal
40571401.326204
Surface area
4938115816715814
Volume
2.3611035363366E+22
Space diagonal
49689615.699439
Perimeter
86064939
Area
3.563778120088E+14
Altitude
24844807.849719
Surface area
3.563778120088E+14
Volume
2.7825872027119E+21
Height
13523800.442068