81158069 is an odd 8-digits composite number following 81158068
and preceding 81158070 . In scientific notation, it is written as 8.1158069 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 79845696 positive integers (up to 81158069) that are relatively prime to 81158069.
81158069 has 8 divisors, whose sum is 82481280
The reverse of 81158069 is 96085118
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million one hundred fifty-eight thousand sixty-nine
Scientific notation
8.1158069 × 10^7
Engineering notation
8.1158069 × 10^6
Prime Factorization
139 × 113 × 5167
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81158069
Product of the distinct prime numbers
The prime factorization of 81158069 is 139 × 113 × 5167.
Since it has a total of 3 prime factors.
2 , 10 , 59 , 23 , 477 , 866 , 8382 , 6720 , 40959 , 72910 , 730044 , 180782 , 1812847 , 2719292 , 35543280 , 85723027 , 538565664 , 107482557 , 4522064333 , 8123204522
n×2
162316138
n×3
243474207
n×4
324632276
n×5
405790345
n÷2
40579034.5
n÷3
27052689.666667
n÷3
20289517.25
n÷5
16231613.8
n2
6586632163808761
n3
5.3455834762801E+23
n4
4.338372326132E+31
n5
3.5209392059191E+39
2 √n
9008.7773310256
3 √n
432.95613876202
4 √n
94.914579127896
5 √n
38.182674134116
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
-81158068
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 81158069 can be divided by 8 positive divisors.
The sum of these divisors (counting 81158069) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101100101111110110101
3
Ternary
12122201020221102
4
Quaternary
10311211332311
5
Quinary
131234024234
6
Senary
12015255445
8
Octal
465457665
10
Decimal
81158069
12
Duodecimal
2321a585
16
Hexadecimal
4d65fb5
20
Vigesimal
1574f39
36
Base36
1cbhyt
md5
c1acc43e92a013b2d16b778da4839141
sha1
cc9cf88888d980ce680305ad0cd190ea6f31fad5
sha256
adacbbd82992368b03fdb18fb35a86d68c929abf2f983ca1b59ce440a1574135
sha512
0eaade737769fd69b055f47f13123a21f3418f99886f2afad7361cce915d802c2e0271f138a3db8aa9f8f1a43885edc4e206904d7c993efb6d4fe23992e4e700
ripemd-160
9f0f1fc773635350a9e2db4ca367395a2aee67a8
Diameter
162316138
Circumference
509931186.69987
Area
2.069251521772E+16
Volume
2.239152770431E+24
Surface area
8.2770060870879E+16
Circumference
509931186.69987
Perimeter
324632276
Area
6586632163808761
Diagonal
114774841.87581
Surface area
39519792982852566
Volume
5.3455834762801E+23
Space diagonal
140569898.95218
Perimeter
243474207
Area
2.852095389621E+15
Altitude
70284949.47609
Surface area
2.852095389621E+15
Volume
6.2998305424607E+22
Height
38258280.62527