66491539 is an odd 8-digits composite number following 66491538
and preceding 66491540 . In scientific notation, it is written as 6.6491539 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 61102080 positive integers (up to 66491539) that are relatively prime to 66491539.
66491539 has 8 divisors, whose sum is 67217040
The reverse of 66491539 is 93519466
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-six million four hundred ninety-one thousand five hundred thirty-nine
Scientific notation
6.6491539 × 10^7
Engineering notation
6.6491539 × 10^6
Prime Factorization
1241 × 131 × 409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66491539
Product of the distinct prime numbers
The prime factorization of 66491539 is 1241 × 131 × 409.
Since it has a total of 3 prime factors.
5 , 10 , 99 , 98 , 743 , 695 , 6274 , 238 , 51918 , 37125 , 483872 , 148590 , 8754372 , 6392204 , 1962064 , 20379616 , 898071198 , 108394941 , 6724390839 , 9396919099
n×2
132983078
n×3
199474617
n×4
265966156
n×5
332457695
n÷2
33245769.5
n÷3
22163846.333333
n÷3
16622884.75
n÷5
13298307.8
n2
4421124758588521
n3
2.9396738930955E+23
n4
1.9546344131004E+31
n5
1.2996665030941E+39
2 √n
8154.2344214525
3 √n
405.12476773696
4 √n
90.300799672276
5 √n
36.690470167844
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
-66491538
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 66491539 can be divided by 8 positive divisors.
The sum of these divisors (counting 66491539) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101101001010010010011
3
Ternary
11122010010020121
4
Quaternary
3331221102103
5
Quinary
114010212124
6
Senary
10333051111
8
Octal
375512223
10
Decimal
66491539
12
Duodecimal
1a326a97
16
Hexadecimal
3f69493
20
Vigesimal
10fb8gj
36
Base36
13l577
md5
a71b6b471a56ff1a916dde4ba82de953
sha1
6668164ed33537702a158df1f22f7608d297aab8
sha256
597c473f5a12f5270afee073a2f259fdcea68c2868edd3bb8af826281485de73
sha512
a4808b60ded483d3efe2949b7e39f742381b777b60ac049c8f5f6b63ea76392505ba08428afd04b97ad4426ccad617951b8989e4124caf2c011af8fa73cf455b
ripemd-160
db6aa7dc72c4ac4a7e88f498306b9aed544d6d09
Diameter
132983078
Circumference
417778660.89656
Area
1.3889373062186E+16
Volume
1.2313677208665E+24
Surface area
5.5557492248743E+16
Circumference
417778660.89656
Perimeter
265966156
Area
4421124758588521
Diagonal
94033236.23686
Surface area
26526748551531126
Volume
2.9396738930955E+23
Space diagonal
115166723.82145
Perimeter
199474617
Area
1.914403177119E+15
Altitude
57583361.910724
Surface area
1.914403177119E+15
Volume
3.4644389071415E+22
Height
31344412.078953