66389968 is an even 8-digits composite number following 66389967
and preceding 66389969 . In scientific notation, it is written as 6.6389968 × 10^7.
The sum of its digits is 55. It has a total of 5 prime factors and 10 positive divisors.
There are 33194976 positive integers (up to 66389968) that are relatively prime to 66389968.
66389968 has 10 divisors, whose sum is 128630594
The reverse of 66389968 is 86998366
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 55
Digital Root 1
Name
sixty-six million three hundred eighty-nine thousand nine hundred sixty-eight
Scientific notation
6.6389968 × 10^7
Engineering notation
6.6389968 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 4149373
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
8298746
Product of the distinct prime numbers
The prime factorization of 66389968 is 2 × 2 × 2 × 2 × 4149373.
Since it has a total of 5 prime factors.
8 , 1 , 24 , 48 , 771 , 672 , 7240 , 5899 , 66715 , 16194 , 737097 , 377155 , 577570 , 300566 , 75186207 , 43675999 , 462020329 , 120880504 , 2197533210 , 2507544320
n×2
132779936
n×3
199169904
n×4
265559872
n×5
331949840
n÷2
33194984
n÷3
22129989.333333
n÷3
16597492
n÷5
13277993.6
n2
4407627851041024
n3
2.9262227198652E+23
n4
1.9427183273273E+31
n5
1.2897700758427E+39
2 √n
8148.0039273432
3 √n
404.91837607204
4 √n
90.266294525383
5 √n
36.679253802535
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66389967
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66389968 can be divided by 10 positive divisors.
The sum of these divisors (counting 66389968) is 1, the average is 0.1.
Base
System
Value
2
Binary
11111101010000011111010000
3
Ternary
11121220221220201
4
Quaternary
3331100133100
5
Quinary
113443434333
6
Senary
10330544544
8
Octal
375203720
10
Decimal
66389968
12
Duodecimal
1a298154
16
Hexadecimal
3f507d0
20
Vigesimal
10eiei8
36
Base36
13iyts
md5
16aa5e1a28d66cf168e20d014d1b7f66
sha1
89638cd98883b1acbea76d1d3adfd61f0eeaed34
sha256
ad45bf955156f4cd9c0394263c236399773217351809c28d0276b1cced00b2df
sha512
9f208bdd863ccd29d90efcb2acd642be6171ed5ce5de9543413487195dc1e6e13813e51ffe570765b4116ee15f487ed31b036046cc9b6453e65ef148eb1f4c71
ripemd-160
9ad5825076e8eb12229e07c581cb9764ccdc733a
Diameter
132779936
Circumference
417140471.48172
Area
1.3846971276588E+16
Volume
1.2257333065995E+24
Surface area
5.5387885106353E+16
Circumference
417140471.48172
Perimeter
265559872
Area
4407627851041024
Diagonal
93889593.151116
Surface area
26445767106246144
Volume
2.9262227198652E+23
Space diagonal
114990797.68887
Perimeter
199169904
Area
1.9085588447147E+15
Altitude
57495398.844436
Surface area
1.9085588447147E+15
Volume
3.4485865474647E+22
Height
31296531.050372