81729306 is an even 8-digits composite number following 81729305
and preceding 81729307 . In scientific notation, it is written as 8.1729306 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 27243096 positive integers (up to 81729306) that are relatively prime to 81729306.
81729306 has 8 divisors, whose sum is 136215540
The reverse of 81729306 is 60392718
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-one million seven hundred twenty-nine thousand three hundred six
Scientific notation
8.1729306 × 10^7
Engineering notation
8.1729306 × 10^6
Prime Factorization
2 × 9 × 4540517
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81729306
Product of the distinct prime numbers
The prime factorization of 81729306 is 2 × 9 × 4540517.
Since it has a total of 3 prime factors.
10 , 4 , 75 , 69 , 169 , 214 , 8399 , 8010 , 41323 , 90801 , 296345 , 694554 , 2563394 , 567488 , 94082638 , 59758760 , 342785302 , 940536513 , 1240792796 , 5644479647
n×2
163458612
n×3
245187918
n×4
326917224
n×5
408646530
n÷2
40864653
n÷3
27243102
n÷3
20432326.5
n÷5
16345861.2
n2
6679679459241636
n3
5.4592556650627E+23
n4
4.4618117678215E+31
n5
3.6466077928668E+39
2 √n
9040.426206767
3 √n
433.96956259036
4 √n
95.081155897302
5 √n
38.236273748369
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
-81729305
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 81729306 can be divided by 8 positive divisors.
The sum of these divisors (counting 81729306) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111110001011100011010
3
Ternary
12200210021112100
4
Quaternary
10313301130122
5
Quinary
131410314211
6
Senary
12035424230
8
Octal
467613432
10
Decimal
81729306
12
Duodecimal
23455076
16
Hexadecimal
4df171a
20
Vigesimal
15ag356
36
Base36
1cnqqi
md5
edfbd2b2fe6daab16027339d2a86f7d2
sha1
4a6c53c3f745e7b5ae9a319bb12f64d9c5994804
sha256
50bd54e13f6fb77bcde4d1771133a96f4f249536bed85f84a62c3a3947704685
sha512
25a6ef7e62cc6fd8bd59968bfaeda29c0667e17a819856022d1d8fe86bd10d82de2381bf4496444698a66a93481a6075df6a03e0f0f9f6b7fe63f21ab91466eb
ripemd-160
d6461ae8e53bdefe886ab074051d1343c382e577
Diameter
163458612
Circumference
513520374.62518
Area
2.0984831917488E+16
Volume
2.2867676655239E+24
Surface area
8.3939327669953E+16
Circumference
513520374.62518
Perimeter
326917224
Area
6679679459241636
Diagonal
115582692.98854
Surface area
40078076755449816
Volume
5.4592556650627E+23
Space diagonal
141559310.45934
Perimeter
245187918
Area
2.8923860504202E+15
Altitude
70779655.229672
Surface area
2.8923860504202E+15
Volume
6.4337945016616E+22
Height
38527564.329514