81330266 is an even 8-digits composite number following 81330265
and preceding 81330267 . In scientific notation, it is written as 8.1330266 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 40263888 positive integers (up to 81330266) that are relatively prime to 81330266.
81330266 has 8 divisors, whose sum is 122506560
The reverse of 81330266 is 66203318
Previous prime number is 170147
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred thirty thousand two hundred sixty-six
Scientific notation
8.1330266 × 10^7
Engineering notation
8.1330266 × 10^6
Prime Factorization
2 × 170147 × 239
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330266
Product of the distinct prime numbers
The prime factorization of 81330266 is 2 × 170147 × 239.
Since it has a total of 3 prime factors.
5 , 8 , 74 , 60 , 72 , 481 , 7827 , 252 , 68915 , 27047 , 391593 , 313152 , 44508 , 1374998 , 90741459 , 78039103 , 957541999 , 790989142 , 215061508 , 4143622632
n×2
162660532
n×3
243990798
n×4
325321064
n×5
406651330
n÷2
40665133
n÷3
27110088.666667
n÷3
20332566.5
n÷5
16266053.2
n2
6614612167630756
n3
5.3796816708025E+23
n4
4.3753094128169E+31
n5
3.558450783767E+39
2 √n
9018.329446189
3 √n
433.26213044431
4 √n
94.964885332364
5 √n
38.198863205549
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
-81330265
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 81330266 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330266) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000001011010
3
Ternary
12200001000011002
4
Quaternary
10312100001122
5
Quinary
131310032031
6
Senary
12023105002
8
Octal
466200132
10
Decimal
81330266
12
Duodecimal
232a2162
16
Hexadecimal
4d9005a
20
Vigesimal
15865d6
36
Base36
1cf6u2
md5
8323bf9c511e7dba07815b0375c20cbd
sha1
7098e6b9850a0cdc55f81a02dd3ec3e60f1b774a
sha256
f9c14c2bea05d0ae44036d17772fbc1aa2ecd7a75e5527706896b991148169ed
sha512
26ed845880b9f6eb8ffec5e077ead9f954809b80fce7579af4b65efdc936db02c2b2c902854627b287dd262a16746a6af49ee2ecb124066e80a8b454adae4003
ripemd-160
02e6a76dd8cfbdb43377ede1f4b9094b734ef8f7
Diameter
162660532
Circumference
511013132.36021
Area
2.0780416992174E+16
Volume
2.2534357887526E+24
Surface area
8.3121667968698E+16
Circumference
511013132.36021
Perimeter
325321064
Area
6614612167630756
Diagonal
115018365.20861
Surface area
39687673005784536
Volume
5.3796816708025E+23
Space diagonal
140868152.90509
Perimeter
243990798
Area
2.8642110866749E+15
Altitude
70434076.452546
Surface area
2.8642110866749E+15
Volume
6.3400156500823E+22
Height
38339455.069537