81492275 is an odd 8-digits composite number following 81492274
and preceding 81492276 . In scientific notation, it is written as 8.1492275 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 64087680 positive integers (up to 81492275) that are relatively prime to 81492275.
81492275 has 8 divisors, whose sum is 98124000
The reverse of 81492275 is 57229418
Previous prime number is 295
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million four hundred ninety-two thousand two hundred seventy-five
Scientific notation
8.1492275 × 10^7
Engineering notation
8.1492275 × 10^6
Prime Factorization
5 × 295 × 55249
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81492275
Product of the distinct prime numbers
The prime factorization of 81492275 is 5 × 295 × 55249.
Since it has a total of 3 prime factors.
5 , 4 , 70 , 7 , 634 , 118 , 6383 , 2798 , 21775 , 77774 , 741159 , 625682 , 9130518 , 3925501 , 19992655 , 38316392 , 910611320 , 369279752 , 1138769933 , 1913488863
n×2
162984550
n×3
244476825
n×4
325969100
n×5
407461375
n÷2
40746137.5
n÷3
27164091.666667
n÷3
20373068.75
n÷5
16298455
n2
6640990884675625
n3
5.4118945544648E+23
n4
4.4102759930345E+31
n5
3.5940342405026E+39
2 √n
9027.3071843158
3 √n
433.54962410843
4 √n
95.01214229937
5 √n
38.214069437623
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
-81492274
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 81492275 can be divided by 8 positive divisors.
The sum of these divisors (counting 81492275) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110110111100100110011
3
Ternary
12200100020101102
4
Quaternary
10312313210303
5
Quinary
131330223100
6
Senary
12030355015
8
Octal
466674463
10
Decimal
81492275
12
Duodecimal
2335ba6b
16
Hexadecimal
4db7933
20
Vigesimal
1596adf
36
Base36
1cinub
md5
1a02d8955fc1eacdd7a9cb26ed7c9eef
sha1
7da6542ea2e3caeb412c596de61a73f8065aa3bc
sha256
7b0d38a3590fa45430cff6e25034c2c28e27830f35473aced05285c7bfd35f3f
sha512
926cf639f909de456aeba936d4c74c06c17bf26a6d3a7073f3a4c60fe3c974a8d005cf36c4f9326317c7516a70fecd67d7a8e9af72b28ce88f0acf3294de475c
ripemd-160
bb012e8d4fe7316c37892d630b8f7a3d641509d4
Diameter
162984550
Circumference
512031064.92864
Area
2.0863288175854E+16
Volume
2.2669290899079E+24
Surface area
8.3453152703415E+16
Circumference
512031064.92864
Perimeter
325969100
Area
6640990884675625
Diagonal
115247480.53364
Surface area
39845945308053750
Volume
5.4118945544648E+23
Space diagonal
141148760.72438
Perimeter
244476825
Area
2.875633406215E+15
Altitude
70574380.362188
Surface area
2.875633406215E+15
Volume
6.3779788975477E+22
Height
38415826.844546