81130275 is an odd 8-digits composite number following 81130274
and preceding 81130276 . In scientific notation, it is written as 8.1130275 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 43269120 positive integers (up to 81130275) that are relatively prime to 81130275.
81130275 has 12 divisors, whose sum is 118751672
The reverse of 81130275 is 57203118
Previous prime number is 75
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million one hundred thirty thousand two hundred seventy-five
Scientific notation
8.1130275 × 10^7
Engineering notation
8.1130275 × 10^6
Prime Factorization
3 × 3 × 75 × 120193
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
27043425
Product of the distinct prime numbers
The prime factorization of 81130275 is 3 × 3 × 75 × 120193.
Since it has a total of 4 prime factors.
6 , 1 , 73 , 24 , 359 , 791 , 2791 , 2585 , 66562 , 51919 , 135169 , 933703 , 3388 , 3038198 , 48187310 , 33954269 , 328319104 , 88329894 , 3165594844 , 6972069250
n×2
162260550
n×3
243390825
n×4
324521100
n×5
405651375
n÷2
40565137.5
n÷3
27043425
n÷3
20282568.75
n÷5
16226055
n2
6582121521575625
n3
5.3400932912885E+23
n4
4.3324323724789E+31
n5
3.5149142979812E+39
2 √n
9007.2345922597
3 √n
432.90670865181
4 √n
94.9064517947
5 √n
38.180058510888
1 , 3 , 9 , 75 , 225 , 675 , 120193 , 360579 , 1081737 , 9014475 , 27043425 , 81130275
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81130274
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81130275 can be divided by 12 positive divisors.
The sum of these divisors (counting 81130275) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110101011111001100100011
3
Ternary
12122122211211000
4
Quaternary
10311133030203
5
Quinary
131232132100
6
Senary
12014523043
8
Octal
465371443
10
Decimal
81130275
12
Duodecimal
23206483
16
Hexadecimal
4d5f323
20
Vigesimal
15715df
36
Base36
1cawir
md5
6a9cf86ae4ca0bf8b71996c7068381fc
sha1
34e7afdc177e8626aad5e43782623d72a0da75cc
sha256
f149faaf88c536fc96bfb600e9f0249e0e98a750858848c9774ac5fc8768ca08
sha512
696a07499067db499a279a7333e018e5318caa65d778c56a7d0044b91ccfde8b8f69b2593c059878fb21f653cfe0fdc526b9d056af1c77e9280e7eb13c424ec6
ripemd-160
3322e2544e4e1d91bd7e270867945faea8532204
Diameter
162260550
Circumference
509756551.84744
Area
2.0678344617217E+16
Volume
2.2368530471195E+24
Surface area
8.2713378468869E+16
Circumference
509756551.84744
Perimeter
324521100
Area
6582121521575625
Diagonal
114735535.22406
Surface area
39492729129453750
Volume
5.3400932912885E+23
Space diagonal
140521758.33204
Perimeter
243390825
Area
2.8501422242404E+15
Altitude
70260879.166018
Surface area
2.8501422242404E+15
Volume
6.2933602973981E+22
Height
38245178.40802