668387788 is an even 9-digits composite number following 668387787
and preceding 668387789 . In scientific notation, it is written as 6.68387788 × 10^8.
The sum of its digits is 61. It has a total of 3 prime factors and 6 positive divisors.
There are 334193892 positive integers (up to 668387788) that are relatively prime to 668387788.
668387788 has 6 divisors, whose sum is 1169678636
The reverse of 668387788 is 887783866
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 61
Digital Root 7
Name
six hundred sixty-eight million three hundred eighty-seven thousand seven hundred eighty-eight
Scientific notation
6.68387788 × 10^8
Engineering notation
6.68387788 × 10^6
Prime Factorization
2 × 2 × 167096947
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
334193894
Product of the distinct prime numbers
The prime factorization of 668387788 is 2 × 2 × 167096947.
Since it has a total of 3 prime factors.
3 , 8 , 75 , 64 , 548 , 750 , 7995 , 4037 , 20739 , 19430 , 306898 , 269623 , 8406565 , 1593716 , 57415588 , 47842501 , 574895171 , 147898199 , 9109556778 , 277026489
n×2
1336775576
n×3
2005163364
n×4
2673551152
n×5
3341938940
n÷2
334193894
n÷3
222795929.33333
n÷3
167096947
n÷5
133677557.6
n2
446742235147532944
n3
2.9859705435644E+26
n4
1.9957862466461E+35
n5
1.3339591547166E+44
2 √n
25853.196862284
3 √n
874.33158770689
4 √n
160.78929336956
5 √n
58.211085947991
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-668387787
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 668387788 can be divided by 6 positive divisors.
The sum of these divisors (counting 668387788) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100111110101101100100111001100
3
Ternary
1201120200121200021
4
Quaternary
213311230213030
5
Quinary
2332101402123
6
Senary
150153511524
8
Octal
4765544714
10
Decimal
668387788
12
Duodecimal
167a125a4
16
Hexadecimal
27d6c9cc
20
Vigesimal
a8h8998
36
Base36
b1xvbg
md5
38d6ecf4878f8ce0dd25639e6021e405
sha1
ad5b1b7250e85eb44393c0b92b85325190d2b291
sha256
ae1d45eea7803d31e5cf156bc3a6c0cf396f6d769d2ceffbfc575cf8dcd8ca83
sha512
86062877a879de826b69fc4fb86003e88439754690a9a8b9ac656d6e2f23c0a03b8001f0460612bd2a303dc7663f973bfa6c50b6531cc3927b1b2ae9d87f8b3a
ripemd-160
a0d3d9d4db84bbbebd151fc2ea1622e77fa0a0d0
Diameter
1336775576
Circumference
4199604329.0599
Area
1.4034821239878E+18
Volume
1.2507604164663E+27
Surface area
5.6139284959511E+18
Circumference
4199604329.0599
Perimeter
2673551152
Area
446742235147532944
Diagonal
945243074.71415
Surface area
2680453410885197664
Volume
2.9859705435644E+26
Space diagonal
1157681607.9746
Perimeter
2005163364
Area
1.934450622906E+17
Altitude
578840803.98729
Surface area
1.934450622906E+17
Volume
3.5190000329627E+25
Height
315081024.90472