64506721 is an odd 8-digits composite number following 64506720
and preceding 64506722 . In scientific notation, it is written as 6.4506721 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 60614400 positive integers (up to 64506721) that are relatively prime to 64506721.
64506721 has 8 divisors, whose sum is 68411304
The reverse of 64506721 is 12760546
Previous prime number is 701
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
sixty-four million five hundred six thousand seven hundred twenty-one
Scientific notation
6.4506721 × 10^7
Engineering notation
6.4506721 × 10^6
Prime Factorization
17 × 701 × 5413
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64506721
Product of the distinct prime numbers
The prime factorization of 64506721 is 17 × 701 × 5413.
Since it has a total of 3 prime factors.
9 , 2 , 71 , 84 , 123 , 988 , 7091 , 7551 , 11700 , 39414 , 192736 , 993410 , 5784826 , 1618433 , 36464608 , 45858750 , 856232434 , 182027515 , 3853210824 , 590096794
n×2
129013442
n×3
193520163
n×4
258026884
n×5
322533605
n÷2
32253360.5
n÷3
21502240.333333
n÷3
16126680.25
n÷5
12901344.2
n2
4161117054171841
n3
2.684200168618E+23
n4
1.731489513852E+31
n5
1.1169271098447E+39
2 √n
8031.6076223879
3 √n
401.05289484937
4 √n
89.619236899161
5 √n
36.468759703998
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
-64506720
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 64506721 can be divided by 8 positive divisors.
The sum of these divisors (counting 64506721) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110110000100101101100001
3
Ternary
11111101021120211
4
Quaternary
3312010231201
5
Quinary
113003203341
6
Senary
10222334121
8
Octal
366045541
10
Decimal
64506721
12
Duodecimal
1972a341
16
Hexadecimal
3d84b61
20
Vigesimal
10336g1
36
Base36
12elpd
md5
ddbc6871191e787f52694f5e85126ce9
sha1
b590ffad2ae8077269e2fb8aace13baf075d89b0
sha256
2645d78a90977f572ec8618ce0c72330d9cf534f3a8f7ea37907942f8c656137
sha512
82f5d3b4ae9de5d50f0dc654ba71e58804dd3fa3b0728c6b5024965bdea0c3f0c05c24c21c925cf0739b06b7f381cc6a1748b68a422403b7ad38bfb5bf51aa57
ripemd-160
504009f78a6b21035d5e73eaaf2fbb1734a3e9a5
Diameter
129013442
Circumference
405307681.60153
Area
1.3072534768113E+16
Volume
1.1243551373993E+24
Surface area
5.2290139072454E+16
Circumference
405307681.60153
Perimeter
258026884
Area
4161117054171841
Diagonal
91226279.702417
Surface area
24966702325031046
Volume
2.684200168618E+23
Space diagonal
111728918.20167
Perimeter
193520163
Area
1.8018165385167E+15
Altitude
55864459.100835
Surface area
1.8018165385167E+15
Volume
3.1633602354865E+22
Height
30408759.900806