81004081 is an odd 8-digits composite number following 81004080
and preceding 81004082 . In scientific notation, it is written as 8.1004081 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 80243232 positive integers (up to 81004081) that are relatively prime to 81004081.
81004081 has 8 divisors, whose sum is 81768960
The reverse of 81004081 is 18040018
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million four thousand eighty-one
Scientific notation
8.1004081 × 10^7
Engineering notation
8.1004081 × 10^6
Prime Factorization
223 × 233 × 1559
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81004081
Product of the distinct prime numbers
The prime factorization of 81004081 is 223 × 233 × 1559.
Since it has a total of 3 prime factors.
2 , 10 , 83 , 12 , 467 , 15 , 2687 , 1204 , 63447 , 64473 , 220886 , 506737 , 6883971 , 2078634 , 64789328 , 66992355 , 146912724 , 875890777 , 59877296 , 1135568264
n×2
162008162
n×3
243012243
n×4
324016324
n×5
405020405
n÷2
40502040.5
n÷3
27001360.333333
n÷3
20251020.25
n÷5
16200816.2
n2
6561661138654561
n3
5.3152133037013E+23
n4
4.3055396898529E+31
n5
3.4876628578556E+39
2 √n
9000.2267193666
3 √n
432.68213741525
4 √n
94.869524713506
5 √n
38.168173687807
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
-81004080
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 81004081 can be divided by 8 positive divisors.
The sum of these divisors (counting 81004081) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101000000011000110001
3
Ternary
12122102102201011
4
Quaternary
10311000120301
5
Quinary
131214112311
6
Senary
12012110521
8
Octal
465003061
10
Decimal
81004081
12
Duodecimal
23165441
16
Hexadecimal
4d40631
20
Vigesimal
1565a41
36
Base36
1c875d
md5
47dfd95be14dd87f00861a524e44c46b
sha1
db72f7434f1cabeb305d3fa162f9fc041196625f
sha256
82361c315d309f9177c43fdf55fbd5686870cc025c0827b3da46d1fa715025d0
sha512
decbfcedf05fc613540b49ded55f676fcfbc35837da13b2f8ec70188860f3477c3a2ebd38b12cf7425214211d48d7a18f986fdcae0d3e06ea631bb0593a795f2
ripemd-160
95978ce4909b8931e34a5e8597b1b8c0ea27cd47
Diameter
162008162
Circumference
508963651.56079
Area
2.0614066428543E+16
Volume
2.2264313422894E+24
Surface area
8.2456265714171E+16
Circumference
508963651.56079
Perimeter
324016324
Area
6561661138654561
Diagonal
114557069.95777
Surface area
39369966831927366
Volume
5.3152133037013E+23
Space diagonal
140303183.91242
Perimeter
243012243
Area
2.84128261855E+15
Altitude
70151591.956212
Surface area
2.84128261855E+15
Volume
6.2640389508335E+22
Height
38185689.985923