81623009 is an odd 8-digits composite number following 81623008
and preceding 81623010 . In scientific notation, it is written as 8.1623009 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 75263760 positive integers (up to 81623009) that are relatively prime to 81623009.
81623009 has 8 divisors, whose sum is 87995712
The reverse of 81623009 is 90032618
Previous prime number is 5591
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million six hundred twenty-three thousand nine
Scientific notation
8.1623009 × 10^7
Engineering notation
8.1623009 × 10^6
Prime Factorization
13 × 5591 × 1123
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81623009
Product of the distinct prime numbers
The prime factorization of 81623009 is 13 × 5591 × 1123.
Since it has a total of 3 prime factors.
5 , 6 , 2 , 29 , 972 , 268 , 4033 , 8331 , 3629 , 72062 , 813815 , 505096 , 1438903 , 8110235 , 81022658 , 74209367 , 468173346 , 948984826 , 7901118945 , 5734507505
n×2
163246018
n×3
244869027
n×4
326492036
n×5
408115045
n÷2
40811504.5
n÷3
27207669.666667
n÷3
20405752.25
n÷5
16324601.8
n2
6662315598214081
n3
5.4379824603387E+23
n4
4.4386449130207E+31
n5
3.6229555368329E+39
2 √n
9034.5453122999
3 √n
433.78134093509
4 √n
95.050225209096
5 √n
38.226322563164
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
-81623008
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 81623009 can be divided by 8 positive divisors.
The sum of these divisors (counting 81623009) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111010111011111100001
3
Ternary
12200120212201102
4
Quaternary
10313113133201
5
Quinary
131343414014
6
Senary
12033244145
8
Octal
467273741
10
Decimal
81623009
12
Duodecimal
23403655
16
Hexadecimal
4dd77e1
20
Vigesimal
15a2ha9
36
Base36
1clgpt
md5
63ea7aa55674afc4903e0191019f84a5
sha1
c9ea6c4a2575e8515d1b6a7a833b9766c39d73e6
sha256
8a016e234c0eb5fc27d7aae1db6e8ea6baa9bdac5c241597792832044e64455b
sha512
1abb15503a66e233432ba1715321832cc7aaebb4ebbfddd07ff627b6dda11dcc8f274dfc3475cbeeb83ecf45551092e0f1a6a39bd058b17f38fb4f5661decda9
ripemd-160
cec5b7cb6ec623ed2c9e41770e1b89054189f306
Diameter
163246018
Circumference
512852490.87659
Area
2.0930281739246E+16
Volume
2.2778567663667E+24
Surface area
8.3721126956984E+16
Circumference
512852490.87659
Perimeter
326492036
Area
6662315598214081
Diagonal
115432366.3295
Surface area
39973893589284486
Volume
5.4379824603387E+23
Space diagonal
141375198.65465
Perimeter
244869027
Area
2.8848672780414E+15
Altitude
70687599.327326
Surface area
2.8848672780414E+15
Volume
6.408723789465E+22
Height
38477455.443167