81330365 is an odd 8-digits composite number following 81330364
and preceding 81330366 . In scientific notation, it is written as 8.1330365 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 64993792 positive integers (up to 81330365) that are relatively prime to 81330365.
81330365 has 8 divisors, whose sum is 97702200
The reverse of 81330365 is 56303318
Previous prime number is 977
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred thirty thousand three hundred sixty-five
Scientific notation
8.1330365 × 10^7
Engineering notation
8.1330365 × 10^6
Prime Factorization
5 × 977 × 16649
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330365
Product of the distinct prime numbers
The prime factorization of 81330365 is 5 × 977 × 16649.
Since it has a total of 3 prime factors.
2 , 3 , 88 , 65 , 22 , 520 , 1432 , 8949 , 39761 , 62290 , 961601 , 622260 , 9378038 , 5363962 , 29749867 , 28087777 , 29571155 , 384473018 , 2535577479 , 892706190
n×2
162660730
n×3
243991095
n×4
325321460
n×5
406651825
n÷2
40665182.5
n÷3
27110121.666667
n÷3
20332591.25
n÷5
16266073
n2
6614628271033225
n3
5.3797013162245E+23
n4
4.3753307163952E+31
n5
3.5584724416013E+39
2 √n
9018.3349350088
3 √n
433.26230624165
4 √n
94.964914231567
5 √n
38.198872505127
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
-81330364
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 81330365 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330365) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000010111101
3
Ternary
12200001000021202
4
Quaternary
10312100002331
5
Quinary
131310032430
6
Senary
12023105245
8
Octal
466200275
10
Decimal
81330365
12
Duodecimal
232a2225
16
Hexadecimal
4d900bd
20
Vigesimal
15865i5
36
Base36
1cf6wt
md5
6b1e3906874209ca39741356ee6cf48c
sha1
b5e6948dee460ff9aeb8f4f820e10f2704ca76e2
sha256
fb1b2f1e2860f15931297b290ba6e4f47426011fcd0dde0412f61dfd0c524bff
sha512
190f018ac099a44f7f3bd31359cefe50e7b90ea69672da97d1ea3417b2ebf413869f9a5625bb41520b7f1d0fe1af65eca19af36fe185d7056490b05465462918
ripemd-160
64e7d180d6519dd5fb3204648409dd278698f2be
Diameter
162660730
Circumference
511013754.39555
Area
2.0780467582505E+16
Volume
2.2534440178078E+24
Surface area
8.3121870330021E+16
Circumference
511013754.39555
Perimeter
325321460
Area
6614628271033225
Diagonal
115018505.21575
Surface area
39687769626199350
Volume
5.3797013162245E+23
Space diagonal
140868324.37812
Perimeter
243991095
Area
2.8642180596528E+15
Altitude
70434162.189061
Surface area
2.8642180596528E+15
Volume
6.3400388024342E+22
Height
38339501.738585