81723963 is an odd 8-digits composite number following 81723962
and preceding 81723964 . In scientific notation, it is written as 8.1723963 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 54482640 positive integers (up to 81723963) that are relatively prime to 81723963.
81723963 has 4 divisors, whose sum is 108965288
The reverse of 81723963 is 36932718
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million seven hundred twenty-three thousand nine hundred sixty-three
Scientific notation
8.1723963 × 10^7
Engineering notation
8.1723963 × 10^6
Prime Factorization
3 × 27241321
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81723963
Product of the distinct prime numbers
The prime factorization of 81723963 is 3 × 27241321.
Since it has a total of 2 prime factors.
4 , 6 , 20 , 56 , 611 , 487 , 4668 , 9826 , 16965 , 13217 , 319265 , 272248 , 3816749 , 83132 , 35348870 , 85532961 , 586907421 , 383046027 , 3808947153 , 8455368119
n×2
163447926
n×3
245171889
n×4
326895852
n×5
408619815
n÷2
40861981.5
n÷3
27241321
n÷3
20430990.75
n÷5
16344792.6
n2
6678806128425369
n3
5.4581850492361E+23
n4
4.4606451301092E+31
n5
3.6454159756918E+39
2 √n
9040.1306959579
3 √n
433.9601055587
4 √n
95.079601892088
5 √n
38.235773801011
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
-81723962
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 81723963 can be divided by 4 positive divisors.
The sum of these divisors (counting 81723963) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111110000001000111011
3
Ternary
12200210000012110
4
Quaternary
10313300020323
5
Quinary
131410131323
6
Senary
12035343403
8
Octal
467601073
10
Decimal
81723963
12
Duodecimal
23451b63
16
Hexadecimal
4df023b
20
Vigesimal
15af9i3
36
Base36
1cnmm3
md5
d8347a4974d7c4c804e08a737d9c1ad9
sha1
de1047a693f9e702883ea90992194498600f106b
sha256
b8490bcdaf7eb9b0404bcadfb58310a876982d0cef627ba536949da51853fbe9
sha512
60ba5ca2641021db8514791edceded38a861bf7bae91a64e4fb9064fd11bb5bf4ab56b316b14875f913ac49ce98571983f7aea1788b7491a99b06193f7fe1516
ripemd-160
4e218dc5ec9272bf73610628143a6beeeefcc642
Diameter
163447926
Circumference
513486803.56609
Area
2.0982088267812E+16
Volume
2.2863192070152E+24
Surface area
8.3928353071247E+16
Circumference
513486803.56609
Perimeter
326895852
Area
6678806128425369
Diagonal
115575136.84548
Surface area
40072836770552214
Volume
5.4581850492361E+23
Space diagonal
141550056.11188
Perimeter
245171889
Area
2.8920078870838E+15
Altitude
70775028.05594
Surface area
2.8920078870838E+15
Volume
6.4325327688098E+22
Height
38525045.615159