81723269 is an odd 8-digits composite number following 81723268
and preceding 81723270 . In scientific notation, it is written as 8.1723269 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 79514496 positive integers (up to 81723269) that are relatively prime to 81723269.
81723269 has 4 divisors, whose sum is 83932044
The reverse of 81723269 is 96232718
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million seven hundred twenty-three thousand two hundred sixty-nine
Scientific notation
8.1723269 × 10^7
Engineering notation
8.1723269 × 10^6
Prime Factorization
37 × 2208737
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81723269
Product of the distinct prime numbers
The prime factorization of 81723269 is 37 × 2208737.
Since it has a total of 2 prime factors.
9 , 7 , 41 , 76 , 179 , 29 , 7090 , 4637 , 1540 , 97211 , 213297 , 393911 , 5728887 , 1971678 , 92241036 , 46754001 , 712493015 , 836842819 , 8951182678 , 9995008745
n×2
163446538
n×3
245169807
n×4
326893076
n×5
408616345
n÷2
40861634.5
n÷3
27241089.666667
n÷3
20430817.25
n÷5
16344653.8
n2
6678692696046361
n3
5.4580459976733E+23
n4
4.4604936128223E+31
n5
3.6452611939346E+39
2 √n
9040.0923114756
3 √n
433.95887715863
4 √n
95.079400037419
5 √n
38.235708861142
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
-81723268
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 81723269 can be divided by 4 positive divisors.
The sum of these divisors (counting 81723269) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111101111111110000101
3
Ternary
12200202222020202
4
Quaternary
10313233332011
5
Quinary
131410121034
6
Senary
12035340245
8
Octal
467577605
10
Decimal
81723269
12
Duodecimal
23451685
16
Hexadecimal
4deff85
20
Vigesimal
15af839
36
Base36
1cnm2t
md5
c75d08fb5ffb50aef6c94e9ab99c813b
sha1
81163ff2421960b43eefccc43d1c826c12e43f10
sha256
98ee8741d60f5cfc4f79f3f5f6da89752df247bc260b62ddabf3dbf04ec3ee70
sha512
99da881d1de6e5db67286a5bb063813c89d5e46f94fb164b791eb52c36acc9e770f1e2cd83249b89cbf02b6ec308d3778b62ae35bb9e12de7658bff05ff8855c
ripemd-160
d762dcbc0c39a0fd71718c2b0f136f12b8454218
Diameter
163446538
Circumference
513482443.03548
Area
2.0981731909483E+16
Volume
2.2862609612328E+24
Surface area
8.3926927637932E+16
Circumference
513482443.03548
Perimeter
326893076
Area
6678692696046361
Diagonal
115574155.38126
Surface area
40072156176278166
Volume
5.4580459976733E+23
Space diagonal
141548854.06862
Perimeter
245169807
Area
2.8919587694229E+15
Altitude
70774427.034309
Surface area
2.8919587694229E+15
Volume
6.4323688949715E+22
Height
38524718.460422