71661809 is an odd 8-digits composite number following 71661808
and preceding 71661810 . In scientific notation, it is written as 7.1661809 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 69478560 positive integers (up to 71661809) that are relatively prime to 71661809.
71661809 has 8 divisors, whose sum is 73866912
The reverse of 71661809 is 90816617
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-one million six hundred sixty-one thousand eight hundred nine
Scientific notation
7.1661809 × 10^7
Engineering notation
7.1661809 × 10^6
Prime Factorization
41 × 163 × 10723
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71661809
Product of the distinct prime numbers
The prime factorization of 71661809 is 41 × 163 × 10723.
Since it has a total of 3 prime factors.
9 , 3 , 46 , 66 , 775 , 387 , 3101 , 4306 , 8406 , 97426 , 627218 , 731632 , 3348512 , 3049781 , 54784042 , 78294251 , 937945719 , 377060261 , 9369997130 , 9585987886
n×2
143323618
n×3
214985427
n×4
286647236
n×5
358309045
n÷2
35830904.5
n÷3
23887269.666667
n÷3
17915452.25
n÷5
14332361.8
n2
5135414869152481
n3
3.6801311948897E+23
n4
2.6372485878312E+31
n5
1.8899000458668E+39
2 √n
8465.329822281
3 √n
415.36438504848
4 √n
92.007227011148
5 √n
37.244105948901
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
-71661808
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 71661809 can be divided by 8 positive divisors.
The sum of these divisors (counting 71661809) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010001010111100011110001
3
Ternary
11222211210112002
4
Quaternary
10101113203301
5
Quinary
121321134214
6
Senary
11035543345
8
Octal
421274361
10
Decimal
71661809
12
Duodecimal
1bbbab55
16
Hexadecimal
44578f1
20
Vigesimal
127hea9
36
Base36
16nylt
md5
2a09382a73affbaa400a95eefcf1976e
sha1
68b5ae94787d5a9ce07685a0adaa5948bfeda6ff
sha256
96d81de0cf2d50ae9db7c2677874a6a23c8b157815db09f1b15fb18dd50eeecf
sha512
da73566b8699430ea88b19c654a692843d0d78def77143b72b2380928b15ab5bf89333c06e34ab0291afd429409cd5139006f05ac9a284e47984fa196f413e1b
ripemd-160
939e228e70e2fdef3f44d4aa466d0ae5217b846d
Diameter
143323618
Circumference
450264425.39471
Area
1.6133381626065E+16
Volume
1.5415297501483E+24
Surface area
6.4533526504261E+16
Circumference
450264425.39471
Perimeter
286647236
Area
5135414869152481
Diagonal
101345102.19199
Surface area
30812489214914886
Volume
3.6801311948897E+23
Space diagonal
124121894.1503
Perimeter
214985427
Area
2.2236998678292E+15
Altitude
62060947.075148
Surface area
2.2236998678292E+15
Volume
4.3370762059377E+22
Height
33781700.730663