66449145 is an odd 8-digits composite number following 66449144
and preceding 66449146 . In scientific notation, it is written as 6.6449145 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 30376416 positive integers (up to 66449145) that are relatively prime to 66449145.
66449145 has 8 divisors, whose sum is 72326400
The reverse of 66449145 is 54194466
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixty-six million four hundred forty-nine thousand one hundred forty-five
Scientific notation
6.6449145 × 10^7
Engineering notation
6.6449145 × 10^6
Prime Factorization
15 × 49 × 90407
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66449145
Product of the distinct prime numbers
The prime factorization of 66449145 is 15 × 49 × 90407.
Since it has a total of 3 prime factors.
7 , 6 , 64 , 23 , 216 , 85 , 7407 , 541 , 38533 , 51092 , 756635 , 991746 , 8243667 , 3834535 , 63380978 , 23251322 , 537783685 , 389149676 , 4917371528 , 4701362018
n×2
132898290
n×3
199347435
n×4
265796580
n×5
332245725
n÷2
33224572.5
n÷3
22149715
n÷3
16612286.25
n÷5
13289829
n2
4415488871231025
n3
2.9340546025032E+23
n4
1.9496541971965E+31
n5
1.2955285444937E+39
2 √n
8151.6344986757
3 √n
405.03864895605
4 √n
90.286402623406
5 √n
36.685790316357
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
-66449144
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 66449145 can be divided by 8 positive divisors.
The sum of these divisors (counting 66449145) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101011110111011111001
3
Ternary
11122000222002110
4
Quaternary
3331132323321
5
Quinary
114002333040
6
Senary
10332122533
8
Octal
375367371
10
Decimal
66449145
12
Duodecimal
1a306449
16
Hexadecimal
3f5eef9
20
Vigesimal
10f62h5
36
Base36
13k8hl
md5
adb0d6fb19d0d5a6fa4568af1304e201
sha1
599d259154ad065e046c2fc2de07b7f3db590ce9
sha256
e6002e697407b3813f69bbf060250cfad662241e0d1bd7b98f9a84ff170439d4
sha512
346646286a5df58fc8bb35222a1d545f8fe43d879452db474c8d9b7b5943c310cea40b90ac7aa63657124ab9fd9d84707249351e98496f40af41a2849ae9f0a8
ripemd-160
1a29d3071bc744c8bad300486a27488f20f53c23
Diameter
132898290
Circumference
417512291.53865
Area
1.3871667399867E+16
Volume
1.2290139179274E+24
Surface area
5.5486669599468E+16
Circumference
417512291.53865
Perimeter
265796580
Area
4415488871231025
Diagonal
93973282.067096
Surface area
26492933227386150
Volume
2.9340546025032E+23
Space diagonal
115093295.25951
Perimeter
199347435
Area
1.9119627663068E+15
Altitude
57546647.629756
Surface area
1.9119627663068E+15
Volume
3.4578165096693E+22
Height
31324427.355699