71666561 is an odd 8-digits prime number following 71666560
and preceding 71666562 . In scientific notation, it is written as 7.1666561 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 71666560 positive integers (up to 71666561) that are relatively prime to 71666561.
71666561 has 2 divisors, whose sum is 71666562
The reverse of 71666561 is 16566617
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-one million six hundred sixty-six thousand five hundred sixty-one
Scientific notation
7.1666561 × 10^7
Engineering notation
7.1666561 × 10^6
Prime Factorization
71666561
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
71666561
Product of the distinct prime numbers
The prime factorization of 71666561 is 71666561.
Since it has a total of 1 prime factors.
4 , 7 , 68 , 78 , 754 , 295 , 2003 , 4244 , 94487 , 38532 , 321874 , 801467 , 1467669 , 8761688 , 99625138 , 82239041 , 471989915 , 55424405 , 3297358195 , 1935944941
n×2
143333122
n×3
214999683
n×4
286666244
n×5
358332805
n÷2
35833280.5
n÷3
23888853.666667
n÷3
17916640.25
n÷5
14333312.2
n2
5136095965566721
n3
3.6808633481814E+23
n4
2.6379481767511E+31
n5
1.8905267392397E+39
2 √n
8465.6104918665
3 √n
415.37356598673
4 √n
92.008752256872
5 √n
37.244599878093
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
71666562
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
35833281
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
8465.610550929
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999972093
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71666561 can be divided by 2 positive divisors.
The sum of these divisors (counting 71666561) is 71666562, the average is 35833281.
Base
System
Value
2
Binary
100010001011000101110000001
3
Ternary
11222212001001002
4
Quaternary
10101120232001
5
Quinary
121321312221
6
Senary
11040021345
8
Octal
421305601
10
Decimal
71666561
12
Duodecimal
20001855
16
Hexadecimal
4458b81
20
Vigesimal
127i681
36
Base36
16o29t
md5
71f20c20a41bdcc51a1d2cf220f261fc
sha1
32a7ac638ebcf168447e4f67f1e5287bb5e8024b
sha256
2c5b45692874dc5132cda7fe6ddc360c5284a897241d394c229998059b449efa
sha512
adeb12daab1eaff0603601afde05a5bca3635fdb1f0ccea9526e8e7006ea046a3f1b74f6c1e14968767b3c7d30d18cf901510546810323e8fe51b7b00c79e3df
ripemd-160
07d7e59a877b341467808a08935a0552d3105440
Diameter
143333122
Circumference
450294283.09129
Area
1.6135521353557E+16
Volume
1.541836433802E+24
Surface area
6.4542085414226E+16
Circumference
450294283.09129
Perimeter
286666244
Area
5136095965566721
Diagonal
101351822.53484
Surface area
30816575793400326
Volume
3.6808633481814E+23
Space diagonal
124130124.85573
Perimeter
214999683
Area
2.2239947912278E+15
Altitude
62065062.427867
Surface area
2.2239947912278E+15
Volume
4.3379390568668E+22
Height
33783940.844946