81041207 is an odd 8-digits composite number following 81041206
and preceding 81041208 . In scientific notation, it is written as 8.1041207 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 73215072 positive integers (up to 81041207) that are relatively prime to 81041207.
81041207 has 8 divisors, whose sum is 89132736
The reverse of 81041207 is 70214018
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighty-one million forty-one thousand two hundred seven
Scientific notation
8.1041207 × 10^7
Engineering notation
8.1041207 × 10^6
Prime Factorization
13 × 47 × 132637
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81041207
Product of the distinct prime numbers
The prime factorization of 81041207 is 13 × 47 × 132637.
Since it has a total of 3 prime factors.
2 , 10 , 67 , 6 , 82 , 56 , 9864 , 9071 , 98735 , 28332 , 254624 , 353419 , 485258 , 1328625 , 14770574 , 82299039 , 829779988 , 735013548 , 4327769282 , 4375415054
n×2
162082414
n×3
243123621
n×4
324164828
n×5
405206035
n÷2
40520603.5
n÷3
27013735.666667
n÷3
20260301.75
n÷5
16208241.4
n2
6567677232016849
n3
5.3225249006906E+23
n4
4.3134384223952E+31
n5
3.4956625607109E+39
2 √n
9002.2889866967
3 √n
432.74822998463
4 √n
94.880393057242
5 √n
38.171671713801
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
-81041206
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 81041207 can be divided by 8 positive divisors.
The sum of these divisors (counting 81041207) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101001001011100110111
3
Ternary
12122111022122012
4
Quaternary
10311021130313
5
Quinary
131221304312
6
Senary
12012554435
8
Octal
465113467
10
Decimal
81041207
12
Duodecimal
23182a1b
16
Hexadecimal
4d49737
20
Vigesimal
156a307
36
Base36
1c8zsn
md5
c588d4845ca645ac9a43dd1e69149554
sha1
270164285efbfea23a7419c65e95afdfdb8d6543
sha256
a893852e101155f2d6c9a8068fdadca7f86e611190d3cc793400967f9b98ee6b
sha512
1d4453a84cdcf675a5bd196b61645e66faf67fbf751144732a03c5e6c204e76be7aaec409524b9562c06fd5c2d280c4d7f3429ed8acf02fa54aa81d4904f3f18
ripemd-160
5c4f97fb8611968069602575ef5191715eece972
Diameter
162082414
Circumference
509196921.0985
Area
2.0632966543253E+16
Volume
2.2294940168745E+24
Surface area
8.2531866173012E+16
Circumference
509196921.0985
Perimeter
324164828
Area
6567677232016849
Diagonal
114609574.05049
Surface area
39406063392101094
Volume
5.3225249006906E+23
Space diagonal
140367488.03071
Perimeter
243123621
Area
2.8438876633916E+15
Altitude
70183744.015353
Surface area
2.8438876633916E+15
Volume
6.272655750521E+22
Height
38203191.350162