81091341 is an odd 8-digits composite number following 81091340
and preceding 81091342 . In scientific notation, it is written as 8.1091341 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 53553744 positive integers (up to 81091341) that are relatively prime to 81091341.
81091341 has 16 divisors, whose sum is 121262400
The reverse of 81091341 is 14319018
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million ninety-one thousand three hundred forty-one
Scientific notation
8.1091341 × 10^7
Engineering notation
8.1091341 × 10^6
Prime Factorization
9 × 3 × 107 × 28069
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81091341
Product of the distinct prime numbers
The prime factorization of 81091341 is 9 × 3 × 107 × 28069.
Since it has a total of 4 prime factors.
4 , 2 , 48 , 39 , 630 , 147 , 4088 , 9808 , 37052 , 84597 , 786966 , 972659 , 8655671 , 5791359 , 12039778 , 24071167 , 183703200 , 567309704 , 7512050332 , 946148318
n×2
162182682
n×3
243274023
n×4
324365364
n×5
405456705
n÷2
40545670.5
n÷3
27030447
n÷3
20272835.25
n÷5
16218268.2
n2
6575805585178281
n3
5.332408930574E+23
n4
4.3241219094062E+31
n5
3.5064884428123E+39
2 √n
9005.0730702199
3 √n
432.83744767334
4 √n
94.89506346602
5 √n
38.176393324677
1 , 3 , 9 , 27 , 107 , 321 , 963 , 2889 , 28069 , 84207 , 252621 , 757863 , 3003383 , 9010149 , 27030447 , 81091341
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81091340
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81091341 can be divided by 16 positive divisors.
The sum of these divisors (counting 81091341) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101010101101100001101
3
Ternary
12122120212102000
4
Quaternary
10311111230031
5
Quinary
131224410331
6
Senary
12014022513
8
Octal
465255415
10
Decimal
81091341
12
Duodecimal
231a7a39
16
Hexadecimal
4d55b0d
20
Vigesimal
156g871
36
Base36
1ca2h9
md5
d2cb8552db86448372f655ce270292a1
sha1
e66e6d3389a8ff42bc6626e78a4951f84b1637bc
sha256
4f65411cd02854c9d8584e5638a4cd5b5c8e84d2552c5e8779974be062ddc8b6
sha512
9815bfde7096b49bf160f602e58c30e5a2a5f827a410acfcfe62b8f2ab36ef21be21184838aa538a023051f5be762d6975317b60e6831eae92aee43d857474b7
ripemd-160
f9109218ca1730639cbf6183174eb0ba376a3ad7
Diameter
162182682
Circumference
509511922.31069
Area
2.0658502517831E+16
Volume
2.2336342296304E+24
Surface area
8.2634010071323E+16
Circumference
509511922.31069
Perimeter
324365364
Area
6575805585178281
Diagonal
114680474.23322
Surface area
39454833511069686
Volume
5.332408930574E+23
Space diagonal
140454322.66589
Perimeter
243274023
Area
2.847407343556E+15
Altitude
70227161.332947
Surface area
2.847407343556E+15
Volume
6.2843041914476E+22
Height
38226824.744407