68638809 is an odd 8-digits composite number following 68638808
and preceding 68638810 . In scientific notation, it is written as 6.8638809 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 43067456 positive integers (up to 68638809) that are relatively prime to 68638809.
68638809 has 8 divisors, whose sum is 96901920
The reverse of 68638809 is 90883686
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-eight million six hundred thirty-eight thousand eight hundred nine
Scientific notation
6.8638809 × 10^7
Engineering notation
6.8638809 × 10^6
Prime Factorization
3 × 17 × 1345859
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68638809
Product of the distinct prime numbers
The prime factorization of 68638809 is 3 × 17 × 1345859.
Since it has a total of 3 prime factors.
5 , 2 , 61 , 52 , 116 , 772 , 4106 , 6574 , 36152 , 50982 , 92764 , 490444 , 3017969 , 8070703 , 41291362 , 48819365 , 620708256 , 619103781 , 2814619085 , 5429369254
n×2
137277618
n×3
205916427
n×4
274555236
n×5
343194045
n÷2
34319404.5
n÷3
22879603
n÷3
17159702.25
n÷5
13727761.8
n2
4711286100938481
n3
3.2337706682667E+23
n4
2.2196216724896E+31
n5
1.5235218803027E+39
2 √n
8284.8541930441
3 √n
409.43966485445
4 √n
91.021174421362
5 √n
36.924442580771
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68638808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68638809 can be divided by 8 positive divisors.
The sum of these divisors (counting 68638809) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101110101100001011001
3
Ternary
11210011012202010
4
Quaternary
10011311201121
5
Quinary
120032420214
6
Senary
10451100133
8
Octal
405654131
10
Decimal
68638809
12
Duodecimal
1aba1649
16
Hexadecimal
4175859
20
Vigesimal
118jh09
36
Base36
14v61l
md5
4a83b3f8996b7eea1e123b666f50236e
sha1
631fbd6ed7c7bf1882f7011714158603a32252f5
sha256
c3d59cbb5899f2d3586e8ff5f458ec3e0f686d0e71cc61a834e0f054ade0a258
sha512
5afbb2eda94dbf5ca26517ad6ee21cdc51d9d8c2ef68c6dba267c156e319a6eb16cedad5193846232a5f0d39a65179467161bff864cf690736f7b188deb1691b
ripemd-160
623139e0e763fccaea6f5202ba19db80ea9043cb
Diameter
137277618
Circumference
431270356.21111
Area
1.4800941803668E+16
Volume
1.3545586899761E+24
Surface area
5.9203767214672E+16
Circumference
431270356.21111
Perimeter
274555236
Area
4711286100938481
Diagonal
97069934.592936
Surface area
28267716605630886
Volume
3.2337706682667E+23
Space diagonal
118885904.55902
Perimeter
205916427
Area
2.0400467239546E+15
Altitude
59442952.279508
Surface area
2.0400467239546E+15
Volume
3.8110352805559E+22
Height
32356644.864312