71661805 is an odd 8-digits composite number following 71661804
and preceding 71661806 . In scientific notation, it is written as 7.1661805 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 57329440 positive integers (up to 71661805) that are relatively prime to 71661805.
71661805 has 4 divisors, whose sum is 85994172
The reverse of 71661805 is 50816617
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
seventy-one million six hundred sixty-one thousand eight hundred five
Scientific notation
7.1661805 × 10^7
Engineering notation
7.1661805 × 10^6
Prime Factorization
5 × 14332361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71661805
Product of the distinct prime numbers
The prime factorization of 71661805 is 5 × 14332361.
Since it has a total of 2 prime factors.
5 , 9 , 14 , 66 , 801 , 545 , 3821 , 6980 , 38817 , 36125 , 775425 , 536697 , 6048928 , 2929308 , 95966776 , 22882250 , 812937636 , 113532920 , 2744197203 , 914151345
n×2
143323610
n×3
214985415
n×4
286647220
n×5
358309025
n÷2
35830902.5
n÷3
23887268.333333
n÷3
17915451.25
n÷5
14332361
n2
5135414295858025
n3
3.6801305786399E+23
n4
2.6372479990103E+31
n5
1.8898995184172E+39
2 √n
8465.3295860232
3 √n
415.36437732024
4 √n
92.00722572724
5 √n
37.244105533125
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
-71661804
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 71661805 can be divided by 4 positive divisors.
The sum of these divisors (counting 71661805) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010001010111100011101101
3
Ternary
11222211210111221
4
Quaternary
10101113203231
5
Quinary
121321134210
6
Senary
11035543341
8
Octal
421274355
10
Decimal
71661805
12
Duodecimal
1bbbab51
16
Hexadecimal
44578ed
20
Vigesimal
127hea5
36
Base36
16nylp
md5
959a2181c8e4dd045b1147417b85580e
sha1
77a51f1eded9dd1ecd224a8bafaa5406df767e76
sha256
70ab50e0c18feb2e890218a2c2bb84602fdbfee77c803f3c5b0eec2515094fa0
sha512
e0c80ce998e46650e236ff7d5a25e339bacc8b8d5053cf2d13eb3fec508774a4aa4c094dacfec3d596bc8a576fe8e44b00b367df6ea7f5e4240567134251052a
ripemd-160
8f6dd9cfe064f133f6b511d3e864e780f9f06702
Diameter
143323610
Circumference
450264400.26197
Area
1.6133379825008E+16
Volume
1.5415294920142E+24
Surface area
6.453351930003E+16
Circumference
450264400.26197
Perimeter
286647220
Area
5135414295858025
Diagonal
101345096.53514
Surface area
30812485775148150
Volume
3.6801305786399E+23
Space diagonal
124121887.22209
Perimeter
214985415
Area
2.2236996195854E+15
Altitude
62060943.611047
Surface area
2.2236996195854E+15
Volume
4.3370754796804E+22
Height
33781698.845045