71640881 is an odd 8-digits composite number following 71640880
and preceding 71640882 . In scientific notation, it is written as 7.1640881 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 64591632 positive integers (up to 71640881) that are relatively prime to 71640881.
71640881 has 8 divisors, whose sum is 78946560
The reverse of 71640881 is 18804617
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
seventy-one million six hundred forty thousand eight hundred eighty-one
Scientific notation
7.1640881 × 10^7
Engineering notation
7.1640881 × 10^6
Prime Factorization
13 × 43 × 128159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71640881
Product of the distinct prime numbers
The prime factorization of 71640881 is 13 × 43 × 128159.
Since it has a total of 3 prime factors.
9 , 4 , 51 , 30 , 176 , 140 , 8815 , 4284 , 42900 , 51301 , 866472 , 558535 , 7068991 , 1638336 , 55908624 , 75650112 , 11785515 , 210697639 , 6264985147 , 7332790978
n×2
143281762
n×3
214922643
n×4
286563524
n×5
358204405
n÷2
35820440.5
n÷3
23880293.666667
n÷3
17910220.25
n÷5
14328176.2
n2
5132415830456161
n3
3.6769079175223E+23
n4
2.6341692256717E+31
n5
1.8871420403021E+39
2 √n
8464.0936313347
3 √n
415.323946995
4 √n
92.000508864542
5 √n
37.241930352925
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
-71640880
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 71640881 can be divided by 8 positive divisors.
The sum of these divisors (counting 71640881) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010001010010011100110001
3
Ternary
11222210201210222
4
Quaternary
10101102130301
5
Quinary
121320002011
6
Senary
11035302425
8
Octal
421223461
10
Decimal
71640881
12
Duodecimal
1bbaaa15
16
Hexadecimal
4452731
20
Vigesimal
127f241
36
Base36
16nigh
md5
e941536a2772353f93828eb0437c4bdf
sha1
bd46fbb428fdac2eaebfc30bf5afbf2431b0e5c7
sha256
24be72adce3d3702a23699163f0caa7811a5e5c7905cb3e79917d9b13ed067dd
sha512
8a0227505705840115bc3b78a6d4f9ef3b9e6bd600b827a57bebb67c52ec5f3da1109c88348c3ea23a180c94ec6155039b1980630b15bf50f8beb4e48eb7e83c
ripemd-160
861ff6b918dfd9651ccc1e95daf1ea41f4249c22
Diameter
143281762
Circumference
450132930.8926
Area
1.6123959868129E+16
Volume
1.5401795868819E+24
Surface area
6.4495839472516E+16
Circumference
450132930.8926
Perimeter
286563524
Area
5132415830456161
Diagonal
101315505.53056
Surface area
30794494982736966
Volume
3.6769079175223E+23
Space diagonal
124085645.791
Perimeter
214922643
Area
2.2224012459802E+15
Altitude
62042822.895498
Surface area
2.2224012459802E+15
Volume
4.3332775371308E+22
Height
33771835.176852