81366475 is an odd 8-digits composite number following 81366474
and preceding 81366476 . In scientific notation, it is written as 8.1366475 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 62013600 positive integers (up to 81366475) that are relatively prime to 81366475.
81366475 has 16 divisors, whose sum is 88711168
The reverse of 81366475 is 57466318
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million three hundred sixty-six thousand four hundred seventy-five
Scientific notation
8.1366475 × 10^7
Engineering notation
8.1366475 × 10^6
Prime Factorization
25 × 67 × 31 × 1567
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81366475
Product of the distinct prime numbers
The prime factorization of 81366475 is 25 × 67 × 31 × 1567.
Since it has a total of 4 prime factors.
7 , 10 , 82 , 71 , 670 , 912 , 4034 , 9150 , 65325 , 63688 , 348480 , 779392 , 7886361 , 7581397 , 58145567 , 7758632 , 194093217 , 789351628 , 6760622638 , 1249453044
n×2
162732950
n×3
244099425
n×4
325465900
n×5
406832375
n÷2
40683237.5
n÷3
27122158.333333
n÷3
20341618.75
n÷5
16273295
n2
6620503253925625
n3
5.3868701249796E+23
n4
4.383106333524E+31
n5
3.5663791190902E+39
2 √n
9020.3367453771
3 √n
433.32641836434
4 √n
94.975453383372
5 √n
38.20226389869
1 , 25 , 31 , 67 , 775 , 1567 , 1675 , 2077 , 39175 , 48577 , 51925 , 104989 , 1214425 , 2624725 , 3254659 , 81366475
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81366474
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81366475 can be divided by 16 positive divisors.
The sum of these divisors (counting 81366475) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110011000110111001011
3
Ternary
12200002211211011
4
Quaternary
10312120313023
5
Quinary
131312211400
6
Senary
12023544351
8
Octal
466306713
10
Decimal
81366475
12
Duodecimal
232bb0b7
16
Hexadecimal
4d98dcb
20
Vigesimal
158ag3f
36
Base36
1cfyrv
md5
62c313da9f6de22c316592708f1f1afe
sha1
9ebe8a08f265a4973f015fcf7f05ee46d27babc1
sha256
fc1c397a47cf3dcecd2f81367e0ffe247eb2c4efadbd158f6617d5a9c2d5dc89
sha512
a8cac4482c651de4d51c3ea04e25ce11211cedb100564b07f265b10f3243ec62ac6bcc476e1d13054f0d46e0e563d2adb55ab8495adc66bc39a32f856591d2ba
ripemd-160
b55e71e3f0531b5a2e251c76f684158b41c349ce
Diameter
162732950
Circumference
511240640.217
Area
2.07989243856E+16
Volume
2.2564468813971E+24
Surface area
8.31956975424E+16
Circumference
511240640.217
Perimeter
325465900
Area
6620503253925625
Diagonal
115069572.46749
Surface area
39723019523553750
Volume
5.3868701249796E+23
Space diagonal
140930868.73278
Perimeter
244099425
Area
2.8667620018686E+15
Altitude
70465434.366391
Surface area
2.8667620018686E+15
Volume
6.3484873245738E+22
Height
38356524.15583