81330446 is an even 8-digits composite number following 81330445
and preceding 81330447 . In scientific notation, it is written as 8.1330446 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 39998520 positive integers (up to 81330446) that are relatively prime to 81330446.
81330446 has 8 divisors, whose sum is 123995784
The reverse of 81330446 is 64403318
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred thirty thousand four hundred forty-six
Scientific notation
8.1330446 × 10^7
Engineering notation
8.1330446 × 10^6
Prime Factorization
2 × 61 × 666643
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330446
Product of the distinct prime numbers
The prime factorization of 81330446 is 2 × 61 × 666643.
Since it has a total of 3 prime factors.
10 , 10 , 84 , 22 , 555 , 618 , 1801 , 6463 , 22279 , 55092 , 875690 , 197713 , 6150176 , 1636398 , 90990655 , 79708238 , 347361333 , 920351526 , 9177837587 , 2194053117
n×2
162660892
n×3
243991338
n×4
325321784
n×5
406652230
n÷2
40665223
n÷3
27110148.666667
n÷3
20332611.5
n÷5
16266089.2
n2
6614641446558916
n3
5.3797173897872E+23
n4
4.3753481466535E+31
n5
3.558490161726E+39
2 √n
9018.3394258588
3 √n
433.26245007573
4 √n
94.964937876349
5 √n
38.198880113866
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
-81330445
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 81330446 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330446) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000100001110
3
Ternary
12200001000101202
4
Quaternary
10312100010032
5
Quinary
131310033241
6
Senary
12023105502
8
Octal
466200416
10
Decimal
81330446
12
Duodecimal
232a2292
16
Hexadecimal
4d9010e
20
Vigesimal
1586626
36
Base36
1cf6z2
md5
ce7db680fe7368c562bba6693c804a68
sha1
d2f0caf68ab81eb0a076c8d5cae8621ca4770d0d
sha256
85c89a48934e1e5fae43d2530141774ea9949cfa5574117ed730283ead02ec70
sha512
a7abad43342d3640c2e9d5c4d259cb28829588af489b46485f8bc909a4035b7b03b8c903c36f0ac836fdba11565a4b9cbb2596bd3daa71320c5e40c032e21559
ripemd-160
7f20403e6e6869bae0d6b64ef4997b0714928df3
Diameter
162660892
Circumference
511014263.33356
Area
2.078050897464E+16
Volume
2.253450750686E+24
Surface area
8.312203589856E+16
Circumference
511014263.33356
Perimeter
325321784
Area
6614641446558916
Diagonal
115018619.76705
Surface area
39687848679353496
Volume
5.3797173897872E+23
Space diagonal
140868464.67424
Perimeter
243991338
Area
2.8642237648227E+15
Altitude
70434232.337118
Surface area
2.8642237648227E+15
Volume
6.3400577453096E+22
Height
38339539.922351