81208133 is an odd 8-digits composite number following 81208132
and preceding 81208134 . In scientific notation, it is written as 8.1208133 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 6 positive divisors.
There are 76430912 positive integers (up to 81208133) that are relatively prime to 81208133.
81208133 has 6 divisors, whose sum is 86266386
The reverse of 81208133 is 33180218
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million two hundred eight thousand one hundred thirty-three
Scientific notation
8.1208133 × 10^7
Engineering notation
8.1208133 × 10^6
Prime Factorization
17 × 17 × 280997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
4776949
Product of the distinct prime numbers
The prime factorization of 81208133 is 17 × 17 × 280997.
Since it has a total of 3 prime factors.
7 , 10 , 3 , 13 , 546 , 985 , 2222 , 7714 , 22650 , 3870 , 56615 , 566508 , 5784433 , 5314223 , 89676457 , 56368868 , 666395357 , 943931017 , 89665883 , 7593149576
n×2
162416266
n×3
243624399
n×4
324832532
n×5
406040665
n÷2
40604066.5
n÷3
27069377.666667
n÷3
20302033.25
n÷5
16241626.6
n2
6594760865345689
n3
5.3554821745619E+23
n4
4.3490870871095E+31
n5
3.5318124259857E+39
2 √n
9011.5555261009
3 √n
433.04514638599
4 √n
94.929213238607
5 √n
38.187383723483
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81208132
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81208133 can be divided by 6 positive divisors.
The sum of these divisors (counting 81208133) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110101110010001101000101
3
Ternary
12122210210121122
4
Quaternary
10311302031011
5
Quinary
131242130013
6
Senary
12020323325
8
Octal
465621505
10
Decimal
81208133
12
Duodecimal
23243545
16
Hexadecimal
4d72345
20
Vigesimal
157b06d
36
Base36
1ccklh
md5
de0d965fec45373133eb2f4fd503169d
sha1
caa5ad684214e3ba29b29b1bf8999308e0df59c6
sha256
8e31499d8cb99ed395800680227047d490bbb8f36786de7cd77e2d454b24b60b
sha512
7b1f15eb0ca98a5899db7fa98e2bfb4780c90a0b6ffd18e337f2d0d9801d4d345a9b9e630f10985fcea020103172c26040873bb0064308ea46c287d8be4a7765
ripemd-160
ab2d8e4e80cf720d51c9ddfc48f9baca0aa99d4a
Diameter
162416266
Circumference
510245748.08909
Area
2.0718052286751E+16
Volume
2.2432991274713E+24
Surface area
8.2872209147006E+16
Circumference
510245748.08909
Perimeter
324832532
Area
6594760865345689
Diagonal
114845643.0636
Surface area
39568565192074134
Volume
5.3554821745619E+23
Space diagonal
140656612.34381
Perimeter
243624399
Area
2.8556152206364E+15
Altitude
70328306.171905
Surface area
2.8556152206364E+15
Volume
6.3114962702606E+22
Height
38281881.021199