6688755721 is an odd 10-digits composite number following 6688755720
and preceding 6688755722 . In scientific notation, it is written as 6.688755721 × 10^9.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 6458108944 positive integers (up to 6688755721) that are relatively prime to 6688755721.
6688755721 has 4 divisors, whose sum is 6919402500
The reverse of 6688755721 is 1275578866
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 55
Digital Root 1
Name
six billion six hundred eighty-eight million seven hundred fifty-five thousand seven hundred twenty-one
Scientific notation
6.688755721 × 10^9
Engineering notation
6.688755721 × 10^9
Prime Factorization
29 × 230646749
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
6688755721
Product of the distinct prime numbers
The prime factorization of 6688755721 is 29 × 230646749.
Since it has a total of 2 prime factors.
6 , 2 , 15 , 22 , 867 , 269 , 2035 , 8389 , 77999 , 34789 , 637772 , 644134 , 8444080 , 9045693 , 77984654 , 41264819 , 640419920 , 238258358 , 8846747121 , 4327757378
n×2
13377511442
n×3
20066267163
n×4
26755022884
n×5
33443778605
n÷2
3344377860.5
n÷3
2229585240.3333
n÷3
1672188930.25
n÷5
1337751144.2
n2
4.473945309521E+19
n3
2.99251272845E+29
n4
2.0016186632585E+39
n5
1.3388338285131E+49
2 √n
81784.813510822
3 √n
1884.1484257946
4 √n
285.98044253204
5 √n
92.271815798345
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
-6688755720
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 6688755721 can be divided by 4 positive divisors.
The sum of these divisors (counting 6688755721) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001110101011100101000000001001
3
Ternary
122021011001222220101
4
Quaternary
12032223211000021
5
Quinary
102144310140341
6
Senary
3023415125401
8
Octal
61653450011
10
Decimal
6688755721
12
Duodecimal
1368073861
16
Hexadecimal
18eae5009
20
Vigesimal
54a4e961
36
Base36
32mb8y1
md5
d65386731b46f923f306697bd066060c
sha1
96c390fa58dcdf6d77dc1fbd20d9bf9d8ed7418d
sha256
47556dcee372a856dfcbe44a39d402f8f61eb9400dd6a92217e5476371649162
sha512
02372f0e67baa2bed3dcc6490ac69a9bc492a7dc588b332d2a722e44074d5894d1fd5c60c79c8079c3c56f9fdb25450642f9e5c471dfbb6360cbd91036f88262
ripemd-160
35072afd339065b425c14f3d89acd3cd788c9f06
Diameter
13377511442
Circumference
42026691669.501
Area
1.4055313716954E+20
Volume
1.253500800463E+30
Surface area
5.6221254867815E+20
Circumference
42026691669.501
Perimeter
26755022884
Area
4.473945309521E+19
Diagonal
9459329056.0388
Surface area
2.6843671857126E+20
Volume
2.99251272845E+29
Space diagonal
11585264748.189
Perimeter
20066267163
Area
1.9372751465937E+19
Altitude
5792632374.0945
Surface area
1.9372751465937E+19
Volume
3.5267100717901E+28
Height
3153109685.3463