72090905 is an odd 8-digits composite number following 72090904
and preceding 72090906 . In scientific notation, it is written as 7.2090905 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 57672720 positive integers (up to 72090905) that are relatively prime to 72090905.
72090905 has 4 divisors, whose sum is 86509092
The reverse of 72090905 is 50909027
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-two million ninety thousand nine hundred five
Scientific notation
7.2090905 × 10^7
Engineering notation
7.2090905 × 10^6
Prime Factorization
5 × 14418181
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72090905
Product of the distinct prime numbers
The prime factorization of 72090905 is 5 × 14418181.
Since it has a total of 2 prime factors.
5 , 6 , 81 , 42 , 559 , 708 , 1607 , 5998 , 61434 , 88409 , 870874 , 815748 , 2107469 , 5856172 , 59592890 , 6113934 , 262875526 , 975774501 , 297566748 , 2295955519
n×2
144181810
n×3
216272715
n×4
288363620
n×5
360454525
n÷2
36045452.5
n÷3
24030301.666667
n÷3
18022726.25
n÷5
14418181
n2
5197098583719025
n3
3.7466354027452E+23
n4
2.7009833688894E+31
n5
1.9471633545319E+39
2 √n
8490.6363130215
3 √n
416.19177432885
4 √n
92.144648857226
5 √n
37.288601495357
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72090904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72090905 can be divided by 4 positive divisors.
The sum of these divisors (counting 72090905) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011000000010100011001
3
Ternary
12000122121010112
4
Quaternary
10103000110121
5
Quinary
121423402110
6
Senary
11053054105
8
Octal
423002431
10
Decimal
72090905
12
Duodecimal
20187335
16
Hexadecimal
44c0519
20
Vigesimal
12ab755
36
Base36
16x5p5
md5
018cfef12851aa3a250c5578d810862f
sha1
2266683d498dbeb0b42c36b5f44e8f4494812db1
sha256
70f0e8fd13c32286c790e883ebf59043beb7c9ae52d0b3ad1057ebcc73875cc9
sha512
66b06cdf6572bd0f6b85e27186b0c425daf46db44c1d32cbe8da05e32b224159f09f750778d4fc797cbbfab410029be2c5a7988fe47cc1a5ab54fcf8c8aa4a69
ripemd-160
6124aaedd833ae0b6b773847258043870d15a4b1
Diameter
144181810
Circumference
452960515.07728
Area
1.6327166730594E+16
Volume
1.5693869675925E+24
Surface area
6.5308666922374E+16
Circumference
452960515.07728
Perimeter
288363620
Area
5197098583719025
Diagonal
101951935.57475
Surface area
31182591502314150
Volume
3.7466354027452E+23
Space diagonal
124865110.22362
Perimeter
216272715
Area
2.2504096997364E+15
Altitude
62432555.111811
Surface area
2.2504096997364E+15
Volume
4.4154521665246E+22
Height
33983978.524917