81352009 is an odd 8-digits composite number following 81352008
and preceding 81352010 . In scientific notation, it is written as 8.1352009 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 80269056 positive integers (up to 81352009) that are relatively prime to 81352009.
81352009 has 8 divisors, whose sum is 82442240
The reverse of 81352009 is 90025318
Previous prime number is 3319
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million three hundred fifty-two thousand nine
Scientific notation
8.1352009 × 10^7
Engineering notation
8.1352009 × 10^6
Prime Factorization
127 × 3319 × 193
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81352009
Product of the distinct prime numbers
The prime factorization of 81352009 is 127 × 3319 × 193.
Since it has a total of 3 prime factors.
8 , 9 , 49 , 88 , 616 , 132 , 9125 , 8523 , 74549 , 1579 , 985263 , 744157 , 9906209 , 2730829 , 68438277 , 29741778 , 504240699 , 522361617 , 7248900920 , 8957801266
n×2
162704018
n×3
244056027
n×4
325408036
n×5
406760045
n÷2
40676004.5
n÷3
27117336.333333
n÷3
20338002.25
n÷5
16270401.8
n2
6618149368336081
n3
5.3839974697622E+23
n4
4.3799901061607E+31
n5
3.563209945363E+39
2 √n
9019.534854969
3 √n
433.3007367328
4 √n
94.971231722922
5 √n
38.200905419649
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
-81352008
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 81352009 can be divided by 8 positive divisors.
The sum of these divisors (counting 81352009) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010101010101001001
3
Ternary
12200002002222101
4
Quaternary
10312111111021
5
Quinary
131311231014
6
Senary
12023353401
8
Octal
466252511
10
Decimal
81352009
12
Duodecimal
232b2861
16
Hexadecimal
4d95549
20
Vigesimal
1589009
36
Base36
1cfnm1
md5
2fb6005fdefdd83bd79764aff5c90eb3
sha1
c34a5027e9c44f0509985369c2968a7832ed0e9b
sha256
1abcb72c026092fd4b38463575a44e1e6dcb3226040a614e9f2360f035fbab2c
sha512
0ebc794e7a6d6bc9b6a85dcaa95f398ea62855aabff040557baa1f11cdf00c9336605a80e78f25c1404bd205c2bd72f5046f4be3d1293e8977f918e265ed5a00
ripemd-160
62fed81d6d43b7ec1da3579fde393e88363382c2
Diameter
162704018
Circumference
511149747.65834
Area
2.0791529435925E+16
Volume
2.2552435863935E+24
Surface area
8.3166117743698E+16
Circumference
511149747.65834
Perimeter
325408036
Area
6618149368336081
Diagonal
115049114.4541
Surface area
39708896210016486
Volume
5.3839974697622E+23
Space diagonal
140905812.8858
Perimeter
244056027
Area
2.8657427395095E+15
Altitude
70452906.4429
Surface area
2.8657427395095E+15
Volume
6.3451018679335E+22
Height
38349704.818033