71318991 is an odd 8-digits composite number following 71318990
and preceding 71318992 . In scientific notation, it is written as 7.1318991 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 47516120 positive integers (up to 71318991) that are relatively prime to 71318991.
71318991 has 8 divisors, whose sum is 95151744
The reverse of 71318991 is 19981317
Previous prime number is 1811
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-one million three hundred eighteen thousand nine hundred ninety-one
Scientific notation
7.1318991 × 10^7
Engineering notation
7.1318991 × 10^6
Prime Factorization
3 × 1811 × 13127
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71318991
Product of the distinct prime numbers
The prime factorization of 71318991 is 3 × 1811 × 13127.
Since it has a total of 3 prime factors.
3 , 2 , 46 , 4 , 90 , 71 , 4816 , 9254 , 25267 , 54632 , 290934 , 844982 , 31949 , 9253265 , 80130649 , 33223006 , 256047694 , 122057005 , 5750119088 , 17598030
n×2
142637982
n×3
213956973
n×4
285275964
n×5
356594955
n÷2
35659495.5
n÷3
23772997
n÷3
17829747.75
n÷5
14263798.2
n2
5086398477258081
n3
3.6275680722198E+23
n4
2.5871449469453E+31
n5
1.8451256718689E+39
2 √n
8445.057193412
3 √n
414.70098167871
4 √n
91.896992297964
5 √n
37.208403662449
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
-71318990
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 71318991 can be divided by 8 positive divisors.
The sum of these divisors (counting 71318991) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010000000011110111001111
3
Ternary
11222012101021010
4
Quaternary
10100003313033
5
Quinary
121224201431
6
Senary
11024340303
8
Octal
420036717
10
Decimal
71318991
12
Duodecimal
1ba74693
16
Hexadecimal
4403dcf
20
Vigesimal
125eh9b
36
Base36
16gm33
md5
43487e9156d394b89a41323cbe136f25
sha1
99ebc654c24737038ee5cd269c67a572e0d99471
sha256
6e218a49c238141ceadebe4b0f5995598010a0dc375842ad4b1f8152b7b9ef23
sha512
289e105ff1e7e64079460e3bb80abc2c35ed4cda9558874c11248e31deb043714c142d92b14f19d6d447282d81da82bb2eadc86bb4307f3e33d11546e925f6d4
ripemd-160
db3cdab8320601912d7466e6d775a65f649df2af
Diameter
142637982
Circumference
448110436.37407
Area
1.5979392089384E+16
Volume
1.519512160811E+24
Surface area
6.3917568357537E+16
Circumference
448110436.37407
Perimeter
285275964
Area
5086398477258081
Diagonal
100860284.32696
Surface area
30518390863548486
Volume
3.6275680722198E+23
Space diagonal
123528115.95655
Perimeter
213956973
Area
2.202475147538E+15
Altitude
61764057.978274
Surface area
2.202475147538E+15
Volume
4.2751299718041E+22
Height
33620094.775655