81330488 is an even 8-digits composite number following 81330487
and preceding 81330489 . In scientific notation, it is written as 8.1330488 × 10^7.
The sum of its digits is 35. It has a total of 6 prime factors and 32 positive divisors.
There are 38418912 positive integers (up to 81330488) that are relatively prime to 81330488.
81330488 has 32 divisors, whose sum is 160963200
The reverse of 81330488 is 88403318
Previous prime number is 827
Is Prime? no Number parity even Number length 8 Sum of Digits 35 Digital Root 8
Name
eighty-one million three hundred thirty thousand four hundred eighty-eight
Scientific notation
8.1330488 × 10^7
Engineering notation
8.1330488 × 10^6
Prime Factorization
2 × 2 × 2 × 19 × 827 × 647
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
6 Total number of prime factors
rad Radical
20332622 Product of the distinct prime numbers
The prime factorization of 81330488 is 2 × 2 × 2 × 19 × 827 × 647.
Since it has a total of 6 prime factors.
10 , 4 , 2 , 59 , 381 , 32 , 1808 , 3221 , 10467 , 72455 , 974574 , 657349 , 6148105 , 971753 , 34501548 , 63669703 , 455276864 , 951544908 , 2481409026 , 364353662
n×2
162660976
n×3
243991464
n×4
325321952
n×5
406652440
n÷2
40665244
n÷3
27110162.666667
n÷3
20332622
n÷5
16266097.6
n2
6614648278318144
n3
5.3797257242397E+23
n4
4.3753571845857E+31
n5
3.5584993499666E+39
2 √n9018.3417544469
3 √n433.26252465633
4 √n94.9649501366
5 √n38.198884059135
1 , 2 , 4 , 8 , 19 , 38 , 76 , 152 , 647 , 827 , 1294 , 1654 , 2588 , 3308 , 5176 , 6616 , 12293 , 15713 , 24586 , 31426 , 49172 , 62852 , 98344 , 125704 , 535069 , 1070138 , 2140276 , 4280552 , 10166311 , 20332622 , 40665244 , 81330488
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81330487 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330488 can be divided by 32 positive divisors.
The sum of these divisors (counting 81330488) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110110010000000100111000
3
Ternary
12200001000110022
4
Quaternary
10312100010320
5
Quinary
131310033423
6
Senary
12023110012
8
Octal
466200470
10
Decimal
81330488
12
Duodecimal
232a2308
16
Hexadecimal
4d90138
20
Vigesimal
1586648
36
Base36
1cf708
md5
c7164bf07d93701d22454b69b3547dd8
sha1
47931b31bba97b183b7e98e96a659d958b2f0bf9
sha256
a6c6b078227158c0b5258602f184ccfe8c3be4cb6d44d9a878b4cbe0777cdd93
sha512
e664248206553763ccdacb58632cd93f690370d6c47ff68a6a89231732d3b01f748920ee29527aa7b8e8763ac50c552d7d0b75ed1746326afab232c9522ba01d
ripemd-160
ddd1e5b59761294ebab26ac1035b53c9e2097633
Diameter
162660976
Circumference
511014527.22735
Area
2.0780530437245E+16
Volume
2.2534542418133E+24
Surface area
8.3122121748979E+16
Circumference
511014527.22735
Perimeter
325321952
Area
6614648278318144
Diagonal
115018679.16402
Surface area
39687889669908864
Volume
5.3797257242397E+23
Space diagonal
140868537.42037
Perimeter
243991464
Area
2.8642267230613E+15
Altitude
70434268.710185
Surface area
2.8642267230613E+15
Volume
6.3400675675561E+22
Height
38339559.721341