71090905 is an odd 8-digits composite number following 71090904
and preceding 71090906 . In scientific notation, it is written as 7.1090905 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 55038000 positive integers (up to 71090905) that are relatively prime to 71090905.
71090905 has 8 divisors, whose sum is 88061184
The reverse of 71090905 is 50909017
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
seventy-one million ninety thousand nine hundred five
Scientific notation
7.1090905 × 10^7
Engineering notation
7.1090905 × 10^6
Prime Factorization
5 × 31 × 458651
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71090905
Product of the distinct prime numbers
The prime factorization of 71090905 is 5 × 31 × 458651.
Since it has a total of 3 prime factors.
7 , 3 , 1 , 74 , 395 , 498 , 6466 , 217 , 10853 , 38130 , 400360 , 994696 , 3647766 , 389048 , 83184209 , 59837255 , 928444764 , 741009840 , 4490850693 , 2399124076
n×2
142181810
n×3
213272715
n×4
284363620
n×5
355454525
n÷2
35545452.5
n÷3
23696968.333333
n÷3
17772726.25
n÷5
14218181
n2
5053916773719025
n3
3.5928751723837E+23
n4
2.5542074755679E+31
n5
1.8158092099588E+39
2 √n
8431.5422669877
3 √n
414.25842306491
4 √n
91.823429836767
5 √n
37.184573842932
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
-71090904
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 71090905 can be divided by 8 positive divisors.
The sum of these divisors (counting 71090905) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001111001100001011011001
3
Ternary
11221202210101111
4
Quaternary
10033030023121
5
Quinary
121144402110
6
Senary
11015420321
8
Octal
417141331
10
Decimal
71090905
12
Duodecimal
1b9846a1
16
Hexadecimal
43cc2d9
20
Vigesimal
1246755
36
Base36
16bq3d
md5
8ec22bc96fa5f26c0ca9bdec45851e6e
sha1
f10bce8d6a13efe087ee9f0fac3ae46ae068d8b4
sha256
6fa889068687cef2b030be2a4df10a0586904fbc7577d5a0bebed501fcde3190
sha512
c7cad14aa078e2503c3764b2893467e4d3409c77ae81ee23ef602d55387a18c1fba7769904bc769075dcba6cfa03a667303d17deaa2b1126a876264414168d69
ripemd-160
ce0ea653bdbbc104072de7587d27ba3b2dde3186
Diameter
142181810
Circumference
446677329.7701
Area
1.587734780817E+16
Volume
1.5049800329101E+24
Surface area
6.350939123268E+16
Circumference
446677329.7701
Perimeter
284363620
Area
5053916773719025
Diagonal
100537722.01238
Surface area
30323500642314150
Volume
3.5928751723837E+23
Space diagonal
123133059.41605
Perimeter
213272715
Area
2.1884101573265E+15
Altitude
61566529.708026
Surface area
2.1884101573265E+15
Volume
4.2342439972488E+22
Height
33512574.004126