688008081 is an odd 9-digits composite number following 688008080
and preceding 688008082 . In scientific notation, it is written as 6.88008081 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 438955200 positive integers (up to 688008081) that are relatively prime to 688008081.
688008081 has 16 divisors, whose sum is 957591488
The reverse of 688008081 is 180800886
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
six hundred eighty-eight million eight thousand eighty-one
Scientific notation
6.88008081 × 10^8
Engineering notation
6.88008081 × 10^6
Prime Factorization
3 × 37 × 61 × 101611
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
688008081
Product of the distinct prime numbers
The prime factorization of 688008081 is 3 × 37 × 61 × 101611.
Since it has a total of 4 prime factors.
1 , 3 , 73 , 99 , 550 , 508 , 4453 , 678 , 13346 , 27134 , 65407 , 901718 , 6500930 , 2002788 , 13381995 , 18153952 , 379515993 , 710653885 , 6410416405 , 3524077239
n×2
1376016162
n×3
2064024243
n×4
2752032324
n×5
3440040405
n÷2
344004040.5
n÷3
229336027
n÷3
172002020.25
n÷5
137601616.2
n2
473355119521302561
n3
3.2567214741338E+26
n4
2.2406506917703E+35
n5
1.5415857826362E+44
2 √n
26229.908139374
3 √n
882.80444882897
4 √n
161.95650076293
5 √n
58.548895654947
1 , 3 , 37 , 61 , 111 , 183 , 2257 , 6771 , 101611 , 304833 , 3759607 , 6198271 , 11278821 , 18594813 , 229336027 , 688008081
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
-688008080
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 688008081 can be divided by 16 positive divisors.
The sum of these divisors (counting 688008081) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101001000000100010101110010001
3
Ternary
1202221121102122210
4
Quaternary
221000202232101
5
Quinary
2402112224311
6
Senary
152134222333
8
Octal
5100425621
10
Decimal
688008081
12
Duodecimal
1724b49a9
16
Hexadecimal
29022b91
20
Vigesimal
af01041
36
Base36
bdmefl
md5
8ee07d397bdba6155acb9aff1d73b13e
sha1
b329449c2d353db05aed1613537dcc4de2c90553
sha256
4e592897656edf2b659591c105428eb7f57fbb5d454e7d8b0feb7b7e75b5b44e
sha512
5121852e2ee553f2f9c536b49fab576ebc7c42ce0e3f1fe34b12cd56bc82712e0262f5a74bab0d43e52d843dd83d6e13be425810d57bae182b3ee50ce88b59f5
ripemd-160
82e8d6a4ce6ac135c5d76cc632b9e22cf4c3b657
Diameter
1376016162
Circumference
4322882265.76
Area
1.4870889660272E+18
Volume
1.3641723010569E+27
Surface area
5.948355864109E+18
Circumference
4322882265.76
Perimeter
2752032324
Area
473355119521302561
Diagonal
972990359.17249
Surface area
2840130717127815366
Volume
3.2567214741338E+26
Space diagonal
1191664952.31
Perimeter
2064024243
Area
2.0496877925843E+17
Altitude
595832476.15498
Surface area
2.0496877925843E+17
Volume
3.8380830646597E+25
Height
324330119.72416