71640 is an even 5-digits composite number following 71639
and preceding 71641 . In scientific notation, it is written as 7.1640 × 10^4.
The sum of its digits is 18. It has a total of 6 prime factors and 32 positive divisors.
There are 19008 positive integers (up to 71640) that are relatively prime to 71640.
71640 has 32 divisors, whose sum is 180000
The reverse of 71640 is 04617
Previous prime number is 5
Is Prime? no
Number parity even
Number length 5
Sum of Digits 18
Digital Root 9
Name
seventy-one thousand six hundred forty
Scientific notation
7.1640 × 10^4
Engineering notation
7.1640 × 10^3
Prime Factorization
2 × 2 × 2 × 9 × 5 × 199
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
17910
Product of the distinct prime numbers
The prime factorization of 71640 is 2 × 2 × 2 × 9 × 5 × 199.
Since it has a total of 6 prime factors.
1 , 10 , 61 , 32 , 716 , 125 , 5398 , 987 , 95058 , 5710 , 442525 , 488018 , 7250002 , 2534850 , 92150162 , 6248490 , 623458539 , 211356881 , 8315027253 , 2915897183
n×2
143280
n×3
214920
n×4
286560
n×5
358200
n÷2
35820
n÷3
23880
n÷3
17910
n÷5
14328
n2
5132289600
n3
367677226944000
n4
2.6340396538268E+19
n5
1.8870260080015E+24
2 √n
267.65649627835
3 √n
41.532224451316
4 √n
16.360210765095
5 √n
9.3547269456506
1 , 2 , 4 , 5 , 8 , 9 , 10 , 18 , 20 , 36 , 40 , 45 , 72 , 90 , 180 , 199 , 360 , 398 , 796 , 995 , 1592 , 1791 , 1990 , 3582 , 3980 , 7164 , 7960 , 8955 , 14328 , 17910 , 35820 , 71640
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71639
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71640 can be divided by 32 positive divisors.
The sum of these divisors (counting 71640) is 1, the average is 0.03125.
Base
System
Value
2
Binary
10001011111011000
3
Ternary
10122021100
4
Quaternary
101133120
5
Quinary
4243030
6
Senary
1311400
8
Octal
213730
10
Decimal
71640
12
Duodecimal
35560
16
Hexadecimal
117d8
20
Vigesimal
8j20
36
Base36
1ja0
md5
42fb4f55c16363cbbdd9d66489f6676b
sha1
7be335fdc8323bf7b6c56a9fd53ba3a9ec480a49
sha256
28079ea64ac7a14136ff2ef77fc1f3d64f9744441c58bb31e333ff8736fa9d92
sha512
8fd6693acc3c22511f287d836ae17158d16917deb1bece62c5710601283b70302e4ad2b08fa1bb0121dbc3976d5898ae7af2d7662ceb79de01bd9eb154bed2af
ripemd-160
3cd0961bdb6129dd1f020d2c31f45de8c76ef45d
Diameter
143280
Circumference
450127.39540635
Area
16123563303.455
Volume
1.540122766746E+15
Surface area
64494253213.821
Circumference
450127.39540635
Perimeter
286560
Area
5132289600
Diagonal
101314.25960841
Surface area
30793737600
Volume
367677226944000
Space diagonal
124084.11985423
Perimeter
214920
Area
2222346586.5893
Altitude
62042.059927117
Surface area
2222346586.5893
Volume
43331176743328
Height
33771.41986947