81005093 is an odd 8-digits composite number following 81005092
and preceding 81005094 . In scientific notation, it is written as 8.1005093 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 74649600 positive integers (up to 81005093) that are relatively prime to 81005093.
81005093 has 8 divisors, whose sum is 87381336
The reverse of 81005093 is 39050018
Previous prime number is 641
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million five thousand ninety-three
Scientific notation
8.1005093 × 10^7
Engineering notation
8.1005093 × 10^6
Prime Factorization
13 × 641 × 9721
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81005093
Product of the distinct prime numbers
The prime factorization of 81005093 is 13 × 641 × 9721.
Since it has a total of 3 prime factors.
10 , 4 , 17 , 85 , 287 , 797 , 79 , 5146 , 65733 , 30732 , 122219 , 558107 , 6835787 , 1024709 , 22226883 , 18906796 , 381289242 , 871946652 , 7010133585 , 9962137799
n×2
162010186
n×3
243015279
n×4
324020372
n×5
405025465
n÷2
40502546.5
n÷3
27001697.666667
n÷3
20251273.25
n÷5
16201018.6
n2
6561825091938649
n3
5.3154125182222E+23
n4
4.3057548537196E+31
n5
3.4878807236075E+39
2 √n
9000.2829399969
3 √n
432.68393926891
4 √n
94.869821018051
5 √n
38.168269055839
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
-81005092
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 81005093 can be divided by 8 positive divisors.
The sum of these divisors (counting 81005093) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101000000101000100101
3
Ternary
12122102111002122
4
Quaternary
10311000220211
5
Quinary
131214130333
6
Senary
12012115325
8
Octal
465005045
10
Decimal
81005093
12
Duodecimal
23165b45
16
Hexadecimal
4d40a25
20
Vigesimal
1565ced
36
Base36
1c87xh
md5
583b7c6eec90eafe91b2b41023bfe0dc
sha1
ad74d9191a144043afb19f35eafd18227f17915b
sha256
e6fa4bb694ea5b3db8ab1660fceec7b505ec52ffb6e1acf10066d280d3283f36
sha512
e423c18c365f1c3a4d9893efe0f0afecfb3cc85c5eb8f46bc0c97d0a54ac588ee7d82ce293e1ff077925cd91fbd3c84782d86f1d1ecec63be56f33b4cd066bce
ripemd-160
51c7d8c597dd7bbc74306cbeeb8817b2542263e7
Diameter
162010186
Circumference
508970010.14432
Area
2.0614581502976E+16
Volume
2.2265147890728E+24
Surface area
8.2458326011903E+16
Circumference
508970010.14432
Perimeter
324020372
Area
6561825091938649
Diagonal
114558501.14189
Surface area
39370950551631894
Volume
5.3154125182222E+23
Space diagonal
140304936.74784
Perimeter
243015279
Area
2.8413536124045E+15
Altitude
70152468.373921
Surface area
2.8413536124045E+15
Volume
6.264273727398E+22
Height
38186167.047298