64495891 is an odd 8-digits composite number following 64495890
and preceding 64495892 . In scientific notation, it is written as 6.4495891 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 63123592 positive integers (up to 64495891) that are relatively prime to 64495891.
64495891 has 4 divisors, whose sum is 65868192
The reverse of 64495891 is 19859446
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
sixty-four million four hundred ninety-five thousand eight hundred ninety-one
Scientific notation
6.4495891 × 10^7
Engineering notation
6.4495891 × 10^6
Prime Factorization
47 × 1372253
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
64495891
Product of the distinct prime numbers
The prime factorization of 64495891 is 47 × 1372253.
Since it has a total of 2 prime factors.
1 , 9 , 1 , 52 , 12 , 90 , 8650 , 931 , 55742 , 10351 , 185854 , 553425 , 5571485 , 4550063 , 33455856 , 70429619 , 342527488 , 265892238 , 7641976456 , 3098154620
n×2
128991782
n×3
193487673
n×4
257983564
n×5
322479455
n÷2
32247945.5
n÷3
21498630.333333
n÷3
16123972.75
n÷5
12899178.2
n2
4159719955883881
n3
2.6828484486521E+23
n4
1.7303270111379E+31
n5
1.115989823047E+39
2 √n
8030.933382864
3 √n
401.03044940556
4 √n
89.615475130493
5 √n
36.467535077516
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-64495890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 64495891 can be divided by 4 positive divisors.
The sum of these divisors (counting 64495891) is 1, the average is 0.25.
Base
System
Value
2
Binary
11110110000010000100010011
3
Ternary
11111100201201201
4
Quaternary
3312002010103
5
Quinary
113002332031
6
Senary
10222212031
8
Octal
366020423
10
Decimal
64495891
12
Duodecimal
19724017
16
Hexadecimal
3d82113
20
Vigesimal
1031jeb
36
Base36
12edcj
md5
817a221d71e6c7de5043defb57c12c06
sha1
08d8b42eb9b789652f693cd3ddbbec267437f213
sha256
6ebe9ba78dcf34442ea6f6569a3eb5b57c6716e82815595c506523d0abd0d955
sha512
bea2147dc813aedc70d36db05fe4c36f51d3f2ce8880f754b57862da94b8d8529391cdfa0cbd4dfed18bb96b627b50c2d3ed233356bf31cf3aa6b253af785bdf
ripemd-160
c29712f59c3d206d0160d19ced07573febe0a07f
Diameter
128991782
Circumference
405239634.70466
Area
1.3068145654396E+16
Volume
1.123788930264E+24
Surface area
5.2272582617583E+16
Circumference
405239634.70466
Perimeter
257983564
Area
4159719955883881
Diagonal
91210963.769537
Surface area
24958319735303286
Volume
2.6828484486521E+23
Space diagonal
111710160.09142
Perimeter
193487673
Area
1.8012115772123E+15
Altitude
55855080.045712
Surface area
1.8012115772123E+15
Volume
3.1617672182295E+22
Height
30403654.589846