81103481 is an odd 8-digits composite number following 81103480
and preceding 81103482 . In scientific notation, it is written as 8.1103481 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 76332672 positive integers (up to 81103481) that are relatively prime to 81103481.
81103481 has 4 divisors, whose sum is 85874292
The reverse of 81103481 is 18430118
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 one hundred three thousand four hundred eighty-one
Scientific notation
8.1103481 × 10^7
Engineering notation
8.1103481 × 10^6
Prime Factorization
17 × 4770793
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81103481
Product of the distinct prime numbers
The prime factorization of 81103481 is 17 × 4770793.
Since it has a total of 2 prime factors.
4 , 2 , 43 , 100 , 307 , 400 , 3234 , 7430 , 40271 , 41218 , 527103 , 16238 , 8771270 , 6479353 , 75304103 , 38830587 , 206012207 , 827853469 , 4113458990 , 8705216085
n×2
162206962
n×3
243310443
n×4
324413924
n×5
405517405
n÷2
40551740.5
n÷3
27034493.666667
n÷3
20275870.25
n÷5
16220696.2
n2
6577774630317361
n3
5.3348041975223E+23
n4
4.3267119087247E+31
n5
3.5091139708172E+39
2 √n
9005.7471094851
3 √n
432.85904629843
4 √n
94.898614897611
5 √n
38.177536316415
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
-81103480
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 81103481 can be divided by 4 positive divisors.
The sum of these divisors (counting 81103481) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011000101001111001
3
Ternary
12122121111001122
4
Quaternary
10311120221321
5
Quinary
131230302411
6
Senary
12014155025
8
Octal
465305171
10
Decimal
81103481
12
Duodecimal
231b2a75
16
Hexadecimal
4d58a79
20
Vigesimal
156hie1
36
Base36
1cabuh
md5
094bf87db000990f3887f14ce58bfb60
sha1
6965bfa6948edacf0ef6db480b40cce784a4281c
sha256
0b395f2179e54585098d22caf4a8e9612a43956b916024e2e0b6527580da9aa4
sha512
aac33cd78ae9be365049260f68fff54b16660fa165dd42b83272a628bfffd505f91aa9c81700f9430ee973ccaab299e9bdb2cbeb24124bd3ad78373c569d0396
ripemd-160
b290be9b8ea9dbb1d81bc2704c3b35b4109c333a
Diameter
162206962
Circumference
509588200.18032
Area
2.0664688455574E+16
Volume
2.2346375567035E+24
Surface area
8.2658753822297E+16
Circumference
509588200.18032
Perimeter
324413924
Area
6577774630317361
Diagonal
114697642.78587
Surface area
39466647781904166
Volume
5.3348041975223E+23
Space diagonal
140475349.7627
Perimeter
243310443
Area
2.8482599651118E+15
Altitude
70237674.881349
Surface area
2.8482599651118E+15
Volume
6.2871270406174E+22
Height
38232547.59529