71388909 is an odd 8-digits composite number following 71388908
and preceding 71388910 . In scientific notation, it is written as 7.1388909 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 45087624 positive integers (up to 71388909) that are relatively prime to 71388909.
71388909 has 8 divisors, whose sum is 83496000
The reverse of 71388909 is 90988317
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-one million three hundred eighty-eight thousand nine hundred nine
Scientific notation
7.1388909 × 10^7
Engineering notation
7.1388909 × 10^6
Prime Factorization
9 × 19 × 417479
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71388909
Product of the distinct prime numbers
The prime factorization of 71388909 is 9 × 19 × 417479.
Since it has a total of 3 prime factors.
3 , 8 , 37 , 36 , 64 , 570 , 2879 , 4006 , 48716 , 3750 , 398269 , 792212 , 380454 , 6848119 , 22051978 , 2479622 , 349558985 , 91015687 , 7709222254 , 2387217941
n×2
142777818
n×3
214166727
n×4
285555636
n×5
356944545
n÷2
35694454.5
n÷3
23796303
n÷3
17847227.25
n÷5
14277781.8
n2
5096376328210281
n3
3.6382474592436E+23
n4
2.5973051678742E+31
n5
1.854187822746E+39
2 √n
8449.1957605443
3 √n
414.83645561456
4 √n
91.919506964215
5 √n
37.215696299537
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
-71388908
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 71388909 can be divided by 8 positive divisors.
The sum of these divisors (counting 71388909) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010000010100111011101101
3
Ternary
11222022221011200
4
Quaternary
10100110323231
5
Quinary
121233421114
6
Senary
11030040113
8
Octal
420247355
10
Decimal
71388909
12
Duodecimal
1baa9039
16
Hexadecimal
4414eed
20
Vigesimal
1263c59
36
Base36
16i419
md5
407e21e1fc8ce01e0b034a188764d7e0
sha1
6a850db598a8b15e0c972dd51de62724f15ca1cf
sha256
38ef5dca400929f661b5f26de384a4fd3465058efc6fe0e7e778ccd78f8741c0
sha512
eba66a582218450be90b1809c97afdb4910d488e251e5f921d5832468bf3e314f041f2043dfed9bc29de7087fe5826147b9e8dbecc319944602236dc9543fdd4
ripemd-160
02809b01d9be68770d7da719c37397ad4cfd24bf
Diameter
142777818
Circumference
448549744.12438
Area
1.6010738432634E+16
Volume
1.5239855319868E+24
Surface area
6.4042953730537E+16
Circumference
448549744.12438
Perimeter
285555636
Area
5096376328210281
Diagonal
100959163.31082
Surface area
30578257969261686
Volume
3.6382474592436E+23
Space diagonal
123649217.48491
Perimeter
214166727
Area
2.2067956837379E+15
Altitude
61824608.742456
Surface area
2.2067956837379E+15
Volume
4.2877157501098E+22
Height
33653054.43694