81493313 is an odd 8-digits composite number following 81493312
and preceding 81493314 . In scientific notation, it is written as 8.1493313 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 74022480 positive integers (up to 81493313) that are relatively prime to 81493313.
81493313 has 8 divisors, whose sum is 88976640
The reverse of 81493313 is 31339418
Previous prime number is 1597
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million four hundred ninety-three thousand three hundred thirteen
Scientific notation
8.1493313 × 10^7
Engineering notation
8.1493313 × 10^6
Prime Factorization
11 × 1597 × 4639
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81493313
Product of the distinct prime numbers
The prime factorization of 81493313 is 11 × 1597 × 4639.
Since it has a total of 3 prime factors.
9 , 3 , 26 , 44 , 796 , 653 , 9464 , 8690 , 18493 , 87128 , 112242 , 300611 , 6544742 , 3636041 , 37284460 , 97821793 , 38314242 , 366630564 , 7873860862 , 757229051
n×2
162986626
n×3
244479939
n×4
325973252
n×5
407466565
n÷2
40746656.5
n÷3
27164437.666667
n÷3
20373328.25
n÷5
16298662.6
n2
6641160063715969
n3
5.4121013575551E+23
n4
4.4105006991896E+31
n5
3.5942631396578E+39
2 √n
9027.3646763604
3 √n
433.55146486613
4 √n
95.012444849927
5 √n
38.214166786733
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
-81493312
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 81493313 can be divided by 8 positive divisors.
The sum of these divisors (counting 81493313) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110110111110101000001
3
Ternary
12200100021210212
4
Quaternary
10312313311001
5
Quinary
131330241223
6
Senary
12030403505
8
Octal
466676501
10
Decimal
81493313
12
Duodecimal
23360595
16
Hexadecimal
4db7d41
20
Vigesimal
1596d5d
36
Base36
1cion5
md5
d001ca98ee1c263a0abbec0314e2bec1
sha1
44495465918f773d1e85ceda48c9e921196ddbcf
sha256
fcfd35e9fbea85638af7bfba0673db99a94a98dbda3f9fc536ba48ad3a1a4b74
sha512
31ea3dff96a35817a1634a374877d082543abf2d5d8da2ee838fa76e379d0136c7b96201bae4501834d464ad52113051c69e3c70e4acbeb9d60d36da68014dce
ripemd-160
d8bd0de79e59fdb4059eb2ad981315115b7b3f8c
Diameter
162986626
Circumference
512037586.87499
Area
2.0863819667484E+16
Volume
2.2670157153838E+24
Surface area
8.3455278669936E+16
Circumference
512037586.87499
Perimeter
325973252
Area
6641160063715969
Diagonal
115248948.48732
Surface area
39846960382295814
Volume
5.4121013575551E+23
Space diagonal
141150558.59311
Perimeter
244479939
Area
2.8757066628884E+15
Altitude
70575279.296557
Surface area
2.8757066628884E+15
Volume
6.3782226173268E+22
Height
38416316.162439