81330893 is an odd 8-digits composite number following 81330892
and preceding 81330894 . In scientific notation, it is written as 8.1330893 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 69647616 positive integers (up to 81330893) that are relatively prime to 81330893.
81330893 has 8 divisors, whose sum is 93035712
The reverse of 81330893 is 39803318
Previous prime number is 1217
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million three hundred thirty thousand eight hundred ninety-three
Scientific notation
8.1330893 × 10^7
Engineering notation
8.1330893 × 10^6
Prime Factorization
7 × 1217 × 9547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330893
Product of the distinct prime numbers
The prime factorization of 81330893 is 7 × 1217 × 9547.
Since it has a total of 3 prime factors.
7 , 3 , 59 , 61 , 646 , 492 , 3720 , 3964 , 69398 , 62904 , 89770 , 940654 , 3372182 , 3546634 , 6127849 , 99591004 , 100048978 , 375224377 , 8275873591 , 4883432789
n×2
162661786
n×3
243992679
n×4
325323572
n×5
406654465
n÷2
40665446.5
n÷3
27110297.666667
n÷3
20332723.25
n÷5
16266178.6
n2
6614714156177449
n3
5.3798060926165E+23
n4
4.3754443367934E+31
n5
3.558587951832E+39
2 √n
9018.3642086578
3 √n
433.26324382506
4 √n
94.965068360202
5 √n
38.198922102722
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
-81330892
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 81330893 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330893) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000001011001101
3
Ternary
12200001001000022
4
Quaternary
10312100023031
5
Quinary
131310042033
6
Senary
12023111525
8
Octal
466201315
10
Decimal
81330893
12
Duodecimal
232a25a5
16
Hexadecimal
4d902cd
20
Vigesimal
158674d
36
Base36
1cf7bh
md5
328ccca4f501fad6f266916cba4a29f2
sha1
b19b889fcd24f6e3e936cd0b739efb178d6a6ffc
sha256
88b788dbb86bd9e3e687e9c54c4b91147f8ab63afe051d4e60fbea8f9cde2c89
sha512
7edf508c8ea82a9a4ef393457e7043b0287f72527641cfb9f00154d7ea5a152545753115c50eb2d115cd1fa6bceeecfc0980d1ca322f0a899b8e3472a49f418e
ripemd-160
f265efc6455980da34aee2923d04d9bfb89da506
Diameter
162661786
Circumference
511017071.9174
Area
2.0780737398643E+16
Volume
2.2534879064402E+24
Surface area
8.3122949594574E+16
Circumference
511017071.9174
Perimeter
325323572
Area
6614714156177449
Diagonal
115019251.92052
Surface area
39688284937064694
Volume
5.3798060926165E+23
Space diagonal
140869238.90095
Perimeter
243992679
Area
2.8642552490111E+15
Altitude
70434619.450474
Surface area
2.8642552490111E+15
Volume
6.3401622825964E+22
Height
38339750.640172