81330459 is an odd 8-digits composite number following 81330458
and preceding 81330460 . In scientific notation, it is written as 8.1330459 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 46046880 positive integers (up to 81330459) that are relatively prime to 81330459.
81330459 has 8 divisors, whose sum is 85987440
The reverse of 81330459 is 95403318
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million three hundred thirty thousand four hundred fifty-nine
Scientific notation
8.1330459 × 10^7
Engineering notation
8.1330459 × 10^6
Prime Factorization
21 × 109 × 35531
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330459
Product of the distinct prime numbers
The prime factorization of 81330459 is 21 × 109 × 35531.
Since it has a total of 3 prime factors.
4 , 5 , 92 , 9 , 304 , 330 , 7722 , 384 , 98728 , 90994 , 558746 , 226732 , 3664561 , 8416822 , 96063762 , 25648239 , 295323350 , 376905858 , 9082631832 , 4888421411
n×2
162660918
n×3
243991377
n×4
325321836
n×5
406652295
n÷2
40665229.5
n÷3
27110153
n÷3
20332614.75
n÷5
16266091.8
n2
6614643561150681
n3
5.3797199694978E+23
n4
4.3753509441072E+31
n5
3.5584930057032E+39
2 √n
9018.3401466123
3 √n
433.26247316021
4 √n
94.964941671189
5 √n
38.198881335021
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
-81330458
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 81330459 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330459) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000100011011
3
Ternary
12200001000102020
4
Quaternary
10312100010123
5
Quinary
131310033314
6
Senary
12023105523
8
Octal
466200433
10
Decimal
81330459
12
Duodecimal
232a22a3
16
Hexadecimal
4d9011b
20
Vigesimal
158662j
36
Base36
1cf6zf
md5
9aaee907ba41e124d2647b9c9f4012c0
sha1
63c2877e184b5a2851d58eca6fa174e797108396
sha256
5b1f1b90325b4eab30f046d981f06d104fda69bdf8ef32f7f304079d519c6e03
sha512
ef606712aa3925a86cb285b04d78b08b2d20dc627455d258b738bf14f6b8b78ab6efe21fdeaedc91ee15450289d2aa4e04130c08997af5e22ff280cf856bdd8e
ripemd-160
189343c32e56d992f99499757c8296b7a0d67d24
Diameter
162660918
Circumference
511014345.01497
Area
2.0780515617826E+16
Volume
2.2534518312726E+24
Surface area
8.3122062471304E+16
Circumference
511014345.01497
Perimeter
325321836
Area
6614643561150681
Diagonal
115018638.15183
Surface area
39687861366904086
Volume
5.3797199694978E+23
Space diagonal
140868487.1909
Perimeter
243991377
Area
2.8642246804678E+15
Altitude
70434243.595449
Surface area
2.8642246804678E+15
Volume
6.3400607855276E+22
Height
38339546.05061