81330395 is an odd 8-digits composite number following 81330394
and preceding 81330396 . In scientific notation, it is written as 8.1330395 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 64172736 positive integers (up to 81330395) that are relatively prime to 81330395.
81330395 has 8 divisors, whose sum is 98933856
The reverse of 81330395 is 59303318
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million three hundred thirty thousand three hundred ninety-five
Scientific notation
8.1330395 × 10^7
Engineering notation
8.1330395 × 10^6
Prime Factorization
5 × 73 × 222823
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330395
Product of the distinct prime numbers
The prime factorization of 81330395 is 5 × 73 × 222823.
Since it has a total of 3 prime factors.
10 , 7 , 84 , 14 , 273 , 471 , 9672 , 8466 , 3892 , 67150 , 213587 , 898515 , 8269248 , 1430759 , 42007068 , 64721457 , 520023894 , 424465781 , 893256633 , 6325671748
n×2
162660790
n×3
243991185
n×4
325321580
n×5
406651975
n÷2
40665197.5
n÷3
27110131.666667
n÷3
20332598.75
n÷5
16266079
n2
6614633150856025
n3
5.3797072693922E+23
n4
4.3753371720404E+31
n5
3.5584790046022E+39
2 √n
9018.3365982868
3 √n
433.26235951354
4 √n
94.964922988895
5 √n
38.198875323179
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
-81330394
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 81330395 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330395) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000011011011
3
Ternary
12200001000022212
4
Quaternary
10312100003123
5
Quinary
131310033040
6
Senary
12023105335
8
Octal
466200333
10
Decimal
81330395
12
Duodecimal
232a224b
16
Hexadecimal
4d900db
20
Vigesimal
15865jf
36
Base36
1cf6xn
md5
c200020b3d79ee8c8242f2415a008211
sha1
b7180ad23887bbfa44dbd299e6a30d031c3fe48b
sha256
777acff79f4916b00a623c21ef06d0ec67945f28aad96ddca53cd524ac751519
sha512
2fd1b80179d4e10988c234017f75562b8a52abd54f060ef00b3a4a4872ae932693ac27aaf0e06d5e048589aff1f1f00e53544b4d91ec45f20bc7e79f32553071
ripemd-160
41410a11642ba7c6bc91786e93b68b1788199555
Diameter
162660790
Circumference
511013942.89111
Area
2.0780482912921E+16
Volume
2.2534465114648E+24
Surface area
8.3121931651683E+16
Circumference
511013942.89111
Perimeter
325321580
Area
6614633150856025
Diagonal
115018547.64216
Surface area
39687798905136150
Volume
5.3797072693922E+23
Space diagonal
140868376.33965
Perimeter
243991185
Area
2.864220172678E+15
Altitude
70434188.169823
Surface area
2.864220172678E+15
Volume
6.3400458183096E+22
Height
38339515.88072