71661808 is an even 8-digits composite number following 71661807
and preceding 71661809 . In scientific notation, it is written as 7.1661808 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 10 positive divisors.
There are 35830896 positive integers (up to 71661808) that are relatively prime to 71661808.
71661808 has 10 divisors, whose sum is 138844784
The reverse of 71661808 is 80816617
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-one million six hundred sixty-one thousand eight hundred eight
Scientific notation
7.1661808 × 10^7
Engineering notation
7.1661808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 4478863
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
8957726
Product of the distinct prime numbers
The prime factorization of 71661808 is 2 × 2 × 2 × 2 × 4478863.
Since it has a total of 5 prime factors.
3 , 2 , 73 , 11 , 647 , 817 , 5594 , 759 , 72474 , 37460 , 78097 , 419518 , 606223 , 7227587 , 24506782 , 5868526 , 151653697 , 742266404 , 1947248785 , 5676153224
n×2
143323616
n×3
214985424
n×4
286647232
n×5
358309040
n÷2
35830904
n÷3
23887269.333333
n÷3
17915452
n÷5
14332361.6
n2
5135414725828864
n3
3.6801310408272E+23
n4
2.637248440626E+31
n5
1.8898999140044E+39
2 √n
8465.3297632166
3 √n
415.36438311642
4 √n
92.007226690171
5 √n
37.244105844957
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71661807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71661808 can be divided by 10 positive divisors.
The sum of these divisors (counting 71661808) is 1, the average is 0.1.
Base
System
Value
2
Binary
100010001010111100011110000
3
Ternary
11222211210112001
4
Quaternary
10101113203300
5
Quinary
121321134213
6
Senary
11035543344
8
Octal
421274360
10
Decimal
71661808
12
Duodecimal
1bbbab54
16
Hexadecimal
44578f0
20
Vigesimal
127hea8
36
Base36
16nyls
md5
22604d0c06872459eab939de629316f0
sha1
1ce6607923c30fe760fc7e61a93a92c72fa962f5
sha256
9547f39719a5a364a8e79bd399f78c82ff92df698bbac03eaca3d457edb67291
sha512
f5246c8890f40ed1323e4ef2de0a750baad6c97455e8002bc4b69ee38303a4f82ace16f10da5ed045cd3af5d3269db49dd083b8b1022f887dd002326fbff5fa5
ripemd-160
aa9734a49ad2c3d99079f549280a701371356c6a
Diameter
143323616
Circumference
450264419.11152
Area
1.6133381175801E+16
Volume
1.5415296856147E+24
Surface area
6.4533524703203E+16
Circumference
450264419.11152
Perimeter
286647232
Area
5135414725828864
Diagonal
101345100.77778
Surface area
30812488354973184
Volume
3.6801310408272E+23
Space diagonal
124121892.41825
Perimeter
214985424
Area
2.2236998057682E+15
Altitude
62060946.209123
Surface area
2.2236998057682E+15
Volume
4.3370760243734E+22
Height
33781700.259259