64520281 is an odd 8-digits composite number following 64520280
and preceding 64520282 . In scientific notation, it is written as 6.4520281 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 55144320 positive integers (up to 64520281) that are relatively prime to 64520281.
64520281 has 8 divisors, whose sum is 73949184
The reverse of 64520281 is 18202546
Previous prime number is 353
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
sixty-four million five hundred twenty thousand two hundred eighty-one
Scientific notation
6.4520281 × 10^7
Engineering notation
6.4520281 × 10^6
Prime Factorization
7 × 353 × 26111
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64520281
Product of the distinct prime numbers
The prime factorization of 64520281 is 7 × 353 × 26111.
Since it has a total of 3 prime factors.
7 , 7 , 79 , 13 , 716 , 732 , 5992 , 1892 , 33475 , 43716 , 919432 , 221780 , 292682 , 7813502 , 95113559 , 57328815 , 572873296 , 45811364 , 8537319016 , 8205089200
n×2
129040562
n×3
193560843
n×4
258081124
n×5
322601405
n÷2
32260140.5
n÷3
21506760.333333
n÷3
16130070.25
n÷5
12904056.2
n2
4162866660318961
n3
2.6858932668931E+23
n4
1.7329458831595E+31
n5
1.1181015533925E+39
2 √n
8032.4517427744
3 √n
401.08099474425
4 √n
89.62394625754
5 √n
36.470292799458
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
-64520280
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 64520281 can be divided by 8 positive divisors.
The sum of these divisors (counting 64520281) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110110001000000001011001
3
Ternary
11111101222012001
4
Quaternary
3312020001121
5
Quinary
113004122111
6
Senary
10222521001
8
Octal
366100131
10
Decimal
64520281
12
Duodecimal
19736161
16
Hexadecimal
3d88059
20
Vigesimal
10350e1
36
Base36
12ew61
md5
dccf5a98f8e7e3e86c1c0682ca2e7c6a
sha1
f68a0dffdc583009a01ca397f41865305a8c7123
sha256
e1c92cff64ce2c49d3ab8f4b25176edcd4575d76abd0579c5066bafbbdfe6148
sha512
ddd6ed048fcc642988928de76799efbe8fd0471850d6408bd727a05fdc24b51b5f57075cceb84cadc6fd1b3aa06c1595417c816174ad18baed99714299e42f67
ripemd-160
303ebee6b0b98859967af107d35999f8fdfc1df2
Diameter
129040562
Circumference
405392881.5943
Area
1.3078031317932E+16
Volume
1.1250643407464E+24
Surface area
5.2312125271728E+16
Circumference
405392881.5943
Perimeter
258081124
Area
4162866660318961
Diagonal
91245456.438323
Surface area
24977199961913766
Volume
2.6858932668931E+23
Space diagonal
111752404.81062
Perimeter
193560843
Area
1.8025741402018E+15
Altitude
55876202.40531
Surface area
1.8025741402018E+15
Volume
3.165355570939E+22
Height
30415152.146108