68018081 is an odd 8-digits composite number following 68018080
and preceding 68018082 . In scientific notation, it is written as 6.8018081 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 63834048 positive integers (up to 68018081) that are relatively prime to 68018081.
68018081 has 4 divisors, whose sum is 68053572
The reverse of 68018081 is 18081086
Previous prime number is 2033
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
sixty-eight million eighteen thousand eighty-one
Scientific notation
6.8018081 × 10^7
Engineering notation
6.8018081 × 10^6
Prime Factorization
2033 × 33457
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68018081
Product of the distinct prime numbers
The prime factorization of 68018081 is 2033 × 33457.
Since it has a total of 2 prime factors.
7 , 10 , 37 , 87 , 567 , 866 , 1283 , 9488 , 66576 , 17687 , 722618 , 169517 , 5869184 , 3671115 , 2931964 , 15185756 , 546586706 , 565793703 , 2525155181 , 4180268505
n×2
136036162
n×3
204054243
n×4
272072324
n×5
340090405
n÷2
34009040.5
n÷3
22672693.666667
n÷3
17004520.25
n÷5
13603616.2
n2
4626459342922561
n3
3.1468288633011E+23
n4
2.1404126051715E+31
n5
1.4558675795198E+39
2 √n
8247.3075000269
3 √n
408.20168365534
4 √n
90.814687688869
5 √n
36.857415199435
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
-68018080
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 68018081 can be divided by 4 positive divisors.
The sum of these divisors (counting 68018081) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000011011101111110100001
3
Ternary
11201222200021012
4
Quaternary
10003131332201
5
Quinary
114403034311
6
Senary
10425510305
8
Octal
403357641
10
Decimal
68018081
12
Duodecimal
1a942395
16
Hexadecimal
40ddfa1
20
Vigesimal
1152541
36
Base36
14hv35
md5
6639210b71eecb2ce57cb4b32d8a9668
sha1
4998c32f82e485a9f1b258b87b690f9969a3ffd5
sha256
ce47d9acdbcf0795ba066154ef2a8b3fb4c6927f6aff00049052edf5c8388675
sha512
103ae380f42b0c116e3a60517d21418000852af8bbe9ffb4ec2898198ddbbe48d3b2768b184de7a7eae65e758f12b28760ac749752b8b3d87e8f0e0304a9da28
ripemd-160
d55c596e5f66b10c9f66e15fa782435d36ca85c4
Diameter
136036162
Circumference
427370207.16175
Area
1.4534450683857E+16
Volume
1.3181405918735E+24
Surface area
5.813780273543E+16
Circumference
427370207.16175
Perimeter
272072324
Area
4626459342922561
Diagonal
96192092.636792
Surface area
27758756057535366
Volume
3.1468288633011E+23
Space diagonal
117810772.12534
Perimeter
204054243
Area
2.0033156602734E+15
Altitude
58905386.062668
Surface area
2.0033156602734E+15
Volume
3.7085733807896E+22
Height
32064030.878931