81304857 is an odd 8-digits composite number following 81304856
and preceding 81304858 . In scientific notation, it is written as 8.1304857 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 51350112 positive integers (up to 81304857) that are relatively prime to 81304857.
81304857 has 8 divisors, whose sum is 88754400
The reverse of 81304857 is 75840318
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-one million three hundred four thousand eight hundred fifty-seven
Scientific notation
8.1304857 × 10^7
Engineering notation
8.1304857 × 10^6
Prime Factorization
27 × 19 × 158489
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81304857
Product of the distinct prime numbers
The prime factorization of 81304857 is 27 × 19 × 158489.
Since it has a total of 3 prime factors.
5 , 6 , 32 , 63 , 723 , 624 , 8697 , 1738 , 28234 , 61556 , 367438 , 308148 , 6589570 , 5465483 , 67043029 , 51905056 , 122917503 , 564278921 , 9985930198 , 3203917786
n×2
162609714
n×3
243914571
n×4
325219428
n×5
406524285
n÷2
40652428.5
n÷3
27101619
n÷3
20326214.25
n÷5
16260971.4
n2
6610479771790449
n3
5.3746411254682E+23
n4
4.3698442813251E+31
n5
3.552895644054E+39
2 √n
9016.9205940831
3 √n
433.21700618469
4 √n
94.957467289746
5 √n
38.196476108401
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
-81304856
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 81304857 can be divided by 8 positive divisors.
The sum of these divisors (counting 81304857) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110001001110100011001
3
Ternary
12122222201022000
4
Quaternary
10312021310121
5
Quinary
131303223412
6
Senary
12022351213
8
Octal
466116431
10
Decimal
81304857
12
Duodecimal
2328b509
16
Hexadecimal
4d89d19
20
Vigesimal
158322h
36
Base36
1cen89
md5
d057e006af1d6b965554a71488363cf0
sha1
744fc81e5fe8640850e986f52df1650921a46b88
sha256
fa18a42ca358b5aafabde96d162d5374e363f71ceaa980c92570464660ff2518
sha512
c729831604598c13fab5f5bc006d0d58bc9a96fd8da43871a7ad76068abd5b6cfbe12aeabfe254b2a57723a7d85d39e0c320ecf99caf2cad619e71e9dd1cbd0e
ripemd-160
daf5fd84992372a2e9432cdb066b4e01c08ea8c4
Diameter
162609714
Circumference
510853482.90474
Area
2.0767434687761E+16
Volume
2.2513244100603E+24
Surface area
8.3069738751043E+16
Circumference
510853482.90474
Perimeter
325219428
Area
6610479771790449
Diagonal
114982431.45621
Surface area
39662878630742694
Volume
5.3746411254682E+23
Space diagonal
140824143.22612
Perimeter
243914571
Area
2.8624217067868E+15
Altitude
70412071.613061
Surface area
2.8624217067868E+15
Volume
6.3340753104377E+22
Height
38327477.152068