68691821 is an odd 8-digits composite number following 68691820
and preceding 68691822 . In scientific notation, it is written as 6.8691821 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 59158440 positive integers (up to 68691821) that are relatively prime to 68691821.
68691821 has 8 divisors, whose sum is 75297600
The reverse of 68691821 is 12819686
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-eight million six hundred ninety-one thousand eight hundred twenty-one
Scientific notation
6.8691821 × 10^7
Engineering notation
6.8691821 × 10^6
Prime Factorization
209 × 11 × 29879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68691821
Product of the distinct prime numbers
The prime factorization of 68691821 is 209 × 11 × 29879.
Since it has a total of 3 prime factors.
7 , 6 , 63 , 68 , 968 , 10 , 7770 , 7609 , 5825 , 45795 , 916272 , 550281 , 5700486 , 1625742 , 5242935 , 19145345 , 516917635 , 505412694 , 8512584206 , 8507844489
n×2
137383642
n×3
206075463
n×4
274767284
n×5
343459105
n÷2
34345910.5
n÷3
22897273.666667
n÷3
17172955.25
n÷5
13738364.2
n2
4718566272296041
n3
3.241269097532E+23
n4
2.226486766605E+31
n5
1.529414304305E+39
2 √n
8288.0529076497
3 √n
409.54504561665
4 √n
91.038743992048
5 √n
36.930144410803
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
-68691820
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 68691821 can be divided by 8 positive divisors.
The sum of these divisors (counting 68691821) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000110000010011101101101
3
Ternary
11210020220110112
4
Quaternary
10012002131231
5
Quinary
120041114241
6
Senary
10452145405
8
Octal
406023555
10
Decimal
68691821
12
Duodecimal
1b008265
16
Hexadecimal
418276d
20
Vigesimal
11969b1
36
Base36
14way5
md5
3994927ba6cde0b3ec42eb04fd61f6e1
sha1
9281d3b4380d97d886ecc64153c72657ac80fed9
sha256
26cca1d0c0304121143979de3bca18268c91ebba8c2e83b55f7f218dceef5f75
sha512
55e924a5ffd53c7cf8a4baa95888cc86be03fbde9317d3106fcd75b21318a9687a2e09e4594b48553b8a0f52103a56eb82130a14f2bd2e9c758385e6d99f33e3
ripemd-160
3bd5507fcd355538556e3b858f9fac3505f68f9e
Diameter
137383642
Circumference
431603440.43061
Area
1.4823813136522E+16
Volume
1.3576996246819E+24
Surface area
5.9295252546087E+16
Circumference
431603440.43061
Perimeter
274767284
Area
4718566272296041
Diagonal
97144904.882305
Surface area
28311397633776246
Volume
3.241269097532E+23
Space diagonal
118977724.03643
Perimeter
206075463
Area
2.0431991306244E+15
Altitude
59488862.018213
Surface area
2.0431991306244E+15
Volume
3.8198722641921E+22
Height
32381634.960768