81330497 is an odd 8-digits composite number following 81330496
and preceding 81330498 . In scientific notation, it is written as 8.1330497 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 79791760 positive integers (up to 81330497) that are relatively prime to 81330497.
81330497 has 8 divisors, whose sum is 82874880
The reverse of 81330497 is 79403318
Previous prime number is 653
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million three hundred thirty thousand four hundred ninety-seven
Scientific notation
8.1330497 × 10^7
Engineering notation
8.1330497 × 10^6
Prime Factorization
59 × 653 × 2111
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330497
Product of the distinct prime numbers
The prime factorization of 81330497 is 59 × 653 × 2111.
Since it has a total of 3 prime factors.
7 , 3 , 99 , 13 , 254 , 850 , 8799 , 9463 , 70326 , 35023 , 784332 , 231176 , 2849554 , 5202908 , 46797582 , 94501318 , 10772490 , 538208545 , 4145882606 , 3890865438
n×2
162660994
n×3
243991491
n×4
325321988
n×5
406652485
n÷2
40665248.5
n÷3
27110165.666667
n÷3
20332624.25
n÷5
16266099.4
n2
6614649742267009
n3
5.379727510195E+23
n4
4.3753591212873E+31
n5
3.5585013188778E+39
2 √n
9018.3422534299
3 √n
433.26254063788
4 √n
94.964952763796
5 √n
38.19888490455
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
-81330496
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 81330497 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330497) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000101000001
3
Ternary
12200001000110122
4
Quaternary
10312100011001
5
Quinary
131310033442
6
Senary
12023110025
8
Octal
466200501
10
Decimal
81330497
12
Duodecimal
232a2315
16
Hexadecimal
4d90141
20
Vigesimal
158664h
36
Base36
1cf70h
md5
db95182718a4e989029bce0c9713c842
sha1
c60b2bd14bc6af485f8432fa0236ab8b0839fdae
sha256
9ab13ea6908fa963b1003d10dfec546118530b8466e6706fc3999b589372110a
sha512
52e8ae8bda280dfbdd92e9ff8e3210763b62998fd043f9c64d7eaa7f3d5e3b5270bc79acbec80b06018a28dec6f71cb1b79f7d22cacf103320c20fbdf98f4ca1
ripemd-160
e02b96061a3d43351c286f172485b497ccb6461b
Diameter
162660994
Circumference
511014583.77601
Area
2.0780535036376E+16
Volume
2.2534549899125E+24
Surface area
8.3122140145503E+16
Circumference
511014583.77601
Perimeter
325321988
Area
6614649742267009
Diagonal
115018691.89194
Surface area
39687898453602054
Volume
5.379727510195E+23
Space diagonal
140868553.00883
Perimeter
243991491
Area
2.8642273569697E+15
Altitude
70434276.504414
Surface area
2.8642273569697E+15
Volume
6.3400696723245E+22
Height
38339563.963981