81330447 is an odd 8-digits composite number following 81330446
and preceding 81330448 . In scientific notation, it is written as 8.1330447 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 49291160 positive integers (up to 81330447) that are relatively prime to 81330447.
81330447 has 8 divisors, whose sum is 118298880
The reverse of 81330447 is 74403318
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million three hundred thirty thousand four hundred forty-seven
Scientific notation
8.1330447 × 10^7
Engineering notation
8.1330447 × 10^6
Prime Factorization
3 × 11 × 2464559
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330447
Product of the distinct prime numbers
The prime factorization of 81330447 is 3 × 11 × 2464559.
Since it has a total of 3 prime factors.
10 , 1 , 95 , 36 , 421 , 208 , 9621 , 635 , 16759 , 54644 , 522455 , 850682 , 5853029 , 5555211 , 25689264 , 31476346 , 739167415 , 216608622 , 5932173967 , 6697522874
n×2
162660894
n×3
243991341
n×4
325321788
n×5
406652235
n÷2
40665223.5
n÷3
27110149
n÷3
20332611.75
n÷5
16266089.4
n2
6614641609219809
n3
5.3797175882265E+23
n4
4.3753483618422E+31
n5
3.5584903804934E+39
2 √n
9018.3394813014
3 √n
433.26245185146
4 √n
94.96493816826
5 √n
38.198880207801
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
-81330446
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 81330447 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330447) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000100001111
3
Ternary
12200001000101210
4
Quaternary
10312100010033
5
Quinary
131310033242
6
Senary
12023105503
8
Octal
466200417
10
Decimal
81330447
12
Duodecimal
232a2293
16
Hexadecimal
4d9010f
20
Vigesimal
1586627
36
Base36
1cf6z3
md5
cbd85d79dda93332a1433dd5e65f7f8a
sha1
954eff879aaf940044bcb5215691190746a60a0e
sha256
6ce94cdadc950a18024f25fb299d2d143cc442ecc67c2b87af8a9cd933114d61
sha512
fde31ce0e08f1e6c7abad7df7eb7194b84dc6561ff39b123cefd05573dee8e5b3dc9b42aa2efad6e8117619827bd95dfde65bdcedd974e5d95088564999c05bb
ripemd-160
e1e075aa2f171dc424eacbb6d489fac4376838c1
Diameter
162660894
Circumference
511014269.61675
Area
2.0780509485654E+16
Volume
2.253450833808E+24
Surface area
8.3122037942617E+16
Circumference
511014269.61675
Perimeter
325321788
Area
6614641609219809
Diagonal
115018621.18127
Surface area
39687849655318854
Volume
5.3797175882265E+23
Space diagonal
140868466.40629
Perimeter
243991341
Area
2.864223835257E+15
Altitude
70434233.203144
Surface area
2.864223835257E+15
Volume
6.3400579791725E+22
Height
38339540.393755