81242503 is an odd 8-digits composite number following 81242502
and preceding 81242504 . In scientific notation, it is written as 8.1242503 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 80129520 positive integers (up to 81242503) that are relatively prime to 81242503.
81242503 has 4 divisors, whose sum is 82355488
The reverse of 81242503 is 30524218
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million two hundred forty-two thousand five hundred three
Scientific notation
8.1242503 × 10^7
Engineering notation
8.1242503 × 10^6
Prime Factorization
73 × 1112911
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81242503
Product of the distinct prime numbers
The prime factorization of 81242503 is 73 × 1112911.
Since it has a total of 2 prime factors.
10 , 6 , 22 , 3 , 5 , 800 , 4484 , 9084 , 5854 , 33865 , 519994 , 355078 , 4971131 , 8162284 , 1951461 , 39736052 , 421921559 , 925675105 , 4397552379 , 3994043558
n×2
162485006
n×3
243727509
n×4
324970012
n×5
406212515
n÷2
40621251.5
n÷3
27080834.333333
n÷3
20310625.75
n÷5
16248500.6
n2
6600344293705009
n3
5.3622849108236E+23
n4
4.3564544795444E+31
n5
3.5392926612375E+39
2 √n
9013.4623203295
3 √n
433.10623083594
4 √n
94.939255949947
5 √n
38.190615612184
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81242502
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81242503 can be divided by 4 positive divisors.
The sum of these divisors (counting 81242503) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101111010100110000111
3
Ternary
12122212112202121
4
Quaternary
10311322212013
5
Quinary
131244230003
6
Senary
12021150411
8
Octal
465724607
10
Decimal
81242503
12
Duodecimal
2325b407
16
Hexadecimal
4d7a987
20
Vigesimal
157f653
36
Base36
1cdb47
md5
b26dbe7dc1cab3f95e6bb332209c5467
sha1
3086d00f662e1f30490b925c738a7dfc5d23aeaa
sha256
64e861cd0041fc8f9335b06d0dcf5822db540d5ebe3a7ed6d05f0a923cc13912
sha512
07b6c37212aacaa640f0d60a20d1e9c90f3727702b5d14bf117ac98eca74f9b5e820fd8ad3237f81613355c78f55827e6ed29cf0a16254bcf9e5245451be058e
ripemd-160
cef78770099c25d926c8053d80bdba038cd41435
Diameter
162485006
Circumference
510461701.16809
Area
2.0735593144267E+16
Volume
2.2461486509732E+24
Surface area
8.2942372577068E+16
Circumference
510461701.16809
Perimeter
324970012
Area
6600344293705009
Diagonal
114894249.58374
Surface area
39602065762230054
Volume
5.3622849108236E+23
Space diagonal
140716142.93007
Perimeter
243727509
Area
2.8580329160361E+15
Altitude
70358071.465033
Surface area
2.8580329160361E+15
Volume
6.3195133718295E+22
Height
38298083.194579