66698728 is an even 8-digits composite number following 66698727
and preceding 66698729 . In scientific notation, it is written as 6.6698728 × 10^7.
The sum of its digits is 52. It has a total of 5 prime factors and 16 positive divisors.
There are 33174000 positive integers (up to 66698728) that are relatively prime to 66698728.
66698728 has 16 divisors, whose sum is 125717760
The reverse of 66698728 is 82789666
Previous prime number is 191
Is Prime? no
Number parity even
Number length 8
Sum of Digits 52
Digital Root 7
Name
sixty-six million six hundred ninety-eight thousand seven hundred twenty-eight
Scientific notation
6.6698728 × 10^7
Engineering notation
6.6698728 × 10^6
Prime Factorization
2 × 2 × 2 × 191 × 43651
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
16674682
Product of the distinct prime numbers
The prime factorization of 66698728 is 2 × 2 × 2 × 191 × 43651.
Since it has a total of 5 prime factors.
4 , 10 , 14 , 96 , 190 , 474 , 2148 , 192 , 93580 , 17761 , 882347 , 665830 , 7790602 , 9668982 , 87228660 , 12760629 , 618837061 , 555517818 , 5190747981 , 3664333695
n×2
133397456
n×3
200096184
n×4
266794912
n×5
333493640
n÷2
33349364
n÷3
22232909.333333
n÷3
16674682
n÷5
13339745.6
n2
4448720316817984
n3
2.9672398635952E+23
n4
1.9791112457269E+31
n5
1.3200420266048E+39
2 √n
8166.9289209592
3 √n
405.54512378942
4 √n
90.371062409154
5 √n
36.71330737267
1 , 2 , 4 , 8 , 191 , 382 , 764 , 1528 , 43651 , 87302 , 174604 , 349208 , 8337341 , 16674682 , 33349364 , 66698728
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66698727
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66698728 can be divided by 16 positive divisors.
The sum of these divisors (counting 66698728) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111110011011110111101000
3
Ternary
11122111122110021
4
Quaternary
3332123313220
5
Quinary
114033324403
6
Senary
10341330224
8
Octal
376336750
10
Decimal
66698728
12
Duodecimal
1a406974
16
Hexadecimal
3f9bde8
20
Vigesimal
10gh6g8
36
Base36
13pl2g
md5
4e889e92529a8ab02228f6d963c7c1b9
sha1
246624a128f491fc5d5daf58acc7f83e33bc15cd
sha256
b96905a451f3f57d7367c1919c81b0320e32dcb4b0ac5fe286763a9d5cba5c0f
sha512
95c41460e864549b74f8cd2451fa7d9a10a79655a37639fe6b703469a7b8946770974269770394c5318c48f4044c41f0956c7565f114219f235fe500561af04f
ripemd-160
c6c777d190af900bb0cae0b3953f66ae43c6eda8
Diameter
133397456
Circumference
419080467.77717
Area
1.3976067065191E+16
Volume
1.2429145275879E+24
Surface area
5.5904268260764E+16
Circumference
419080467.77717
Perimeter
266794912
Area
4448720316817984
Diagonal
94326245.730634
Surface area
26692321900907904
Volume
2.9672398635952E+23
Space diagonal
115525585.69622
Perimeter
200096184
Area
1.9263524043482E+15
Altitude
57762792.848108
Surface area
1.9263524043482E+15
Volume
3.4969257149253E+22
Height
31442081.910211