81330495 is an odd 8-digits composite number following 81330494
and preceding 81330496 . In scientific notation, it is written as 8.1330495 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 43185024 positive integers (up to 81330495) that are relatively prime to 81330495.
81330495 has 16 divisors, whose sum is 130702560
The reverse of 81330495 is 59403318
Previous prime number is 229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million three hundred thirty thousand four hundred ninety-five
Scientific notation
8.1330495 × 10^7
Engineering notation
8.1330495 × 10^6
Prime Factorization
3 × 5 × 229 × 23677
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81330495
Product of the distinct prime numbers
The prime factorization of 81330495 is 3 × 5 × 229 × 23677.
Since it has a total of 4 prime factors.
2 , 3 , 67 , 78 , 710 , 343 , 3284 , 1066 , 80786 , 30301 , 750961 , 115995 , 8130859 , 8150437 , 91913220 , 83869538 , 122553052 , 953395645 , 847430141 , 9089778292
n×2
162660990
n×3
243991485
n×4
325321980
n×5
406652475
n÷2
40665247.5
n÷3
27110165
n÷3
20332623.75
n÷5
16266099
n2
6614649416945025
n3
5.379727113316E+23
n4
4.3753586909091E+31
n5
3.5585008813419E+39
2 √n
9018.3421425448
3 √n
433.26253708643
4 √n
94.964952179974
5 √n
38.19888471668
1 , 3 , 5 , 15 , 229 , 687 , 1145 , 3435 , 23677 , 71031 , 118385 , 355155 , 5422033 , 16266099 , 27110165 , 81330495
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330494
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330495 can be divided by 16 positive divisors.
The sum of these divisors (counting 81330495) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010000000100111111
3
Ternary
12200001000110120
4
Quaternary
10312100010333
5
Quinary
131310033440
6
Senary
12023110023
8
Octal
466200477
10
Decimal
81330495
12
Duodecimal
232a2313
16
Hexadecimal
4d9013f
20
Vigesimal
158664f
36
Base36
1cf70f
md5
d8ffaa7853bd3a8be325877656916ee7
sha1
e3cbe665eb204d3c567a2b4bbe0aa26e2d15c0fe
sha256
a1424051525e8822b72d67371c3415c72558a97d68a156486ecd6c718ae047ce
sha512
049cb074fd5b5944b5b9b4c03fb2d9cab53852467cb2152a80fab065f00c48f887c4a1745f8ce5fa46d3952afd29646c5b5e2c301e3617c9e23ce9382b6ac4a9
ripemd-160
885e3a6032be7e09633e795def6e52cbe07b9614
Diameter
162660990
Circumference
511014571.20964
Area
2.0780534014346E+16
Volume
2.2534548236682E+24
Surface area
8.3122136057386E+16
Circumference
511014571.20964
Perimeter
325321980
Area
6614649416945025
Diagonal
115018689.06352
Surface area
39687896501670150
Volume
5.379727113316E+23
Space diagonal
140868549.54473
Perimeter
243991485
Area
2.8642272161012E+15
Altitude
70434274.772363
Surface area
2.8642272161012E+15
Volume
6.3400692045981E+22
Height
38339563.021172