81331504 is an even 8-digits composite number following 81331503
and preceding 81331505 . In scientific notation, it is written as 8.1331504 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 10 positive divisors.
There are 40665744 positive integers (up to 81331504) that are relatively prime to 81331504.
81331504 has 10 divisors, whose sum is 157579820
The reverse of 81331504 is 40513318
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million three hundred thirty-one thousand five hundred four
Scientific notation
8.1331504 × 10^7
Engineering notation
8.1331504 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 5083219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10166438
Product of the distinct prime numbers
The prime factorization of 81331504 is 2 × 2 × 2 × 2 × 5083219.
Since it has a total of 5 prime factors.
4 , 8 , 2 , 69 , 646 , 603 , 3007 , 8783 , 460 , 6331 , 313084 , 994694 , 210538 , 1281822 , 4692973 , 18691727 , 326708419 , 69953721 , 8055273197 , 4725048582
n×2
162663008
n×3
243994512
n×4
325326016
n×5
406657520
n÷2
40665752
n÷3
27110501.333333
n÷3
20332876
n÷5
16266300.8
n2
6614813542902016
n3
5.3799273412379E+23
n4
4.375575820736E+31
n5
3.5587216236649E+39
2 √n
9018.3980839171
3 √n
433.26432878868
4 √n
94.965246716455
5 √n
38.198979496586
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81331503
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81331504 can be divided by 10 positive divisors.
The sum of these divisors (counting 81331504) is 1, the average is 0.1.
Base
System
Value
2
Binary
100110110010000010100110000
3
Ternary
12200001001211221
4
Quaternary
10312100110300
5
Quinary
131310102004
6
Senary
12023114424
8
Octal
466202460
10
Decimal
81331504
12
Duodecimal
232a2a14
16
Hexadecimal
4d90530
20
Vigesimal
15868f4
36
Base36
1cf7sg
md5
418cf0ba0bb420145d7732bccec10a67
sha1
be9eb2341bde04228ff0a5cd7b9033a382092534
sha256
c349e48c66205422c821ad848f3e0bb0ced8e0325e25e3850aa608ee780e3afd
sha512
059ccb13519e2a4258df85ceae1c6ae476ffe43b2891ebdba539b5a38cb72e7655c5c438052ddb1c927fb0ef44164e66f6636c93e2667710871e73392c88ec69
ripemd-160
42532d26d80f06fa12be3e411dacc5ea283dc28a
Diameter
162663008
Circumference
511020910.94362
Area
2.0781049631247E+16
Volume
2.253538694944E+24
Surface area
8.3124198524989E+16
Circumference
511020910.94362
Perimeter
325326016
Area
6614813542902016
Diagonal
115020116.005
Surface area
39688881257412096
Volume
5.3799273412379E+23
Space diagonal
140870297.18399
Perimeter
243994512
Area
2.8642982847252E+15
Altitude
70435148.591996
Surface area
2.8642982847252E+15
Volume
6.340305175467E+22
Height
38340038.668334