68688009 is an odd 8-digits composite number following 68688008
and preceding 68688010 . In scientific notation, it is written as 6.8688009 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 41366880 positive integers (up to 68688009) that are relatively prime to 68688009.
68688009 has 16 divisors, whose sum is 83946240
The reverse of 68688009 is 90088686
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
sixty-eight million six hundred eighty-eight thousand nine
Scientific notation
6.8688009 × 10^7
Engineering notation
6.8688009 × 10^6
Prime Factorization
9 × 13 × 47 × 12491
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68688009
Product of the distinct prime numbers
The prime factorization of 68688009 is 9 × 13 × 47 × 12491.
Since it has a total of 4 prime factors.
6 , 1 , 37 , 24 , 512 , 545 , 4679 , 268 , 25794 , 68202 , 269130 , 812801 , 760401 , 789224 , 44650605 , 4774641 , 477843901 , 193487741 , 5311868059 , 4226865097
n×2
137376018
n×3
206064027
n×4
274752036
n×5
343440045
n÷2
34344004.5
n÷3
22896003
n÷3
17172002.25
n÷5
13737601.8
n2
4718042580384081
n3
3.240729512238E+23
n4
2.2259925790317E+31
n5
1.5289899830246E+39
2 √n
8287.8229348846
3 √n
409.53746968028
4 √n
91.037480934419
5 √n
36.929734519688
1 , 9 , 13 , 47 , 117 , 423 , 611 , 5499 , 12491 , 112419 , 162383 , 587077 , 1461447 , 5283693 , 7632001 , 68688009
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68688008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68688009 can be divided by 16 positive divisors.
The sum of these divisors (counting 68688009) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000110000001100010001001
3
Ternary
11210020201020100
4
Quaternary
10012001202021
5
Quinary
120041004014
6
Senary
10452120013
8
Octal
406014211
10
Decimal
68688009
12
Duodecimal
1b006009
16
Hexadecimal
4181889
20
Vigesimal
1196009
36
Base36
14w809
md5
1eae8e24cbf33d84160929781558342d
sha1
fbdfcf7b0ab2a4b1188c085c55c336fa63c8b04e
sha256
d373f129c66a8a1bcbb9f6b64c2ad7dcd47f884b7aeb4824d7014bef8a2a39fc
sha512
bcc0a05f79b518888fbb1ffd6a09fe6e6ab72dff1796d1da630eda0b500211aba86f6fbfd9fe125a11e1c0bac91b4e94db768a139e1d159e05609cb3de5c06e0
ripemd-160
e1ee2d6d1bb86f455c789382f7ac4c8eaa639113
Diameter
137376018
Circumference
431579488.92822
Area
1.4822167909858E+16
Volume
1.3574736037225E+24
Surface area
5.9288671639434E+16
Circumference
431579488.92822
Perimeter
274752036
Area
4718042580384081
Diagonal
97139513.900205
Surface area
28308255482304486
Volume
3.240729512238E+23
Space diagonal
118971121.45875
Perimeter
206064027
Area
2.0429723653746E+15
Altitude
59485560.729374
Surface area
2.0429723653746E+15
Volume
3.8192363568248E+22
Height
32379837.966735