81330862 is an even 8-digits composite number following 81330861
and preceding 81330863 . In scientific notation, it is written as 8.1330862 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 40665430 positive integers (up to 81330862) that are relatively prime to 81330862.
81330862 has 4 divisors, whose sum is 121996296
The reverse of 81330862 is 26803318
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million three hundred thirty thousand eight hundred sixty-two
Scientific notation
8.1330862 × 10^7
Engineering notation
8.1330862 × 10^6
Prime Factorization
2 × 40665431
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81330862
Product of the distinct prime numbers
The prime factorization of 81330862 is 2 × 40665431.
Since it has a total of 2 prime factors.
4 , 3 , 54 , 64 , 68 , 429 , 8645 , 8248 , 76985 , 35815 , 943017 , 143959 , 4964803 , 3522723 , 27884856 , 58751262 , 370552746 , 745325238 , 7533899418 , 2719043842
n×2
162661724
n×3
243992586
n×4
325323448
n×5
406654310
n÷2
40665431
n÷3
27110287.333333
n÷3
20332715.5
n÷5
16266172.4
n2
6614709113663044
n3
5.3797999409347E+23
n4
4.3754376658377E+31
n5
3.5585811698985E+39
2 √n
9018.3624899424
3 √n
433.26318877766
4 √n
94.965059311003
5 √n
38.198919190749
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330861
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330862 can be divided by 4 positive divisors.
The sum of these divisors (counting 81330862) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010000001010101110
3
Ternary
12200001000222011
4
Quaternary
10312100022232
5
Quinary
131310041422
6
Senary
12023111434
8
Octal
466201256
10
Decimal
81330862
12
Duodecimal
232a257a
16
Hexadecimal
4d902ae
20
Vigesimal
1586732
36
Base36
1cf7am
md5
7918c48873c27b2f5141b651d36f0624
sha1
03240859acef7c980b9b6e7656ad09bb2efd2c5c
sha256
caf622adcf393cd9a7a5d3d9d88ac6ebcbdc46aa7e8cbd4e5830a2816334d09b
sha512
3342da5f6b40652caf2db5149f97f6cbee28f85b39e9664aad4e4d9686eed8cd1edc32c1f07f9d2e9f48d62551f0115d21fa99d5a9692d25c4952b309d379893
ripemd-160
144e84adc6f28f93117b7c72407d3ac0281eee96
Diameter
162661724
Circumference
511016877.13865
Area
2.0780721557117E+16
Volume
2.2534853296298E+24
Surface area
8.3122886228469E+16
Circumference
511016877.13865
Perimeter
325323448
Area
6614709113663044
Diagonal
115019208.07989
Surface area
39688254681978264
Volume
5.3797999409347E+23
Space diagonal
140869185.20737
Perimeter
243992586
Area
2.8642530655383E+15
Altitude
70434592.603686
Surface area
2.8642530655383E+15
Volume
6.3401550327699E+22
Height
38339736.026632