80491905 is an odd 8-digits composite number following 80491904
and preceding 80491906 . In scientific notation, it is written as 8.0491905 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 39626496 positive integers (up to 80491905) that are relatively prime to 80491905.
80491905 has 12 divisors, whose sum is 118055652
The reverse of 80491905 is 50919408
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty million four hundred ninety-one thousand nine hundred five
Scientific notation
8.0491905 × 10^7
Engineering notation
8.0491905 × 10^6
Prime Factorization
65 × 3 × 3 × 137593
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
26830635
Product of the distinct prime numbers
The prime factorization of 80491905 is 65 × 3 × 3 × 137593.
Since it has a total of 4 prime factors.
6 , 1 , 29 , 36 , 941 , 397 , 3665 , 5504 , 66973 , 69628 , 132874 , 193743 , 6543499 , 8855804 , 59370187 , 24954361 , 78116896 , 905121631 , 6705557503 , 6100554530
n×2
160983810
n×3
241475715
n×4
321967620
n×5
402459525
n÷2
40245952.5
n÷3
26830635
n÷3
20122976.25
n÷5
16098381
n2
6478946770529025
n3
5.2150276795348E+23
n4
4.1976751255348E+31
n5
3.3787886742541E+39
2 √n
8971.7280944086
3 √n
431.76828172484
4 √n
94.719206576114
5 √n
38.119784884843
1 , 3 , 9 , 65 , 195 , 585 , 137593 , 412779 , 1238337 , 8943545 , 26830635 , 80491905
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-80491904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 80491905 can be divided by 12 positive divisors.
The sum of these divisors (counting 80491905) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110011000011010110000001
3
Ternary
12121110102010200
4
Quaternary
10303003112001
5
Quinary
131101220110
6
Senary
11553115413
8
Octal
463032601
10
Decimal
80491905
12
Duodecimal
22b58b69
16
Hexadecimal
4cc3581
20
Vigesimal
15319f5
36
Base36
1bx7y9
md5
48fd5651431cd4fbf9da2666bcc48204
sha1
4fa712861ea874aa5647b932aae7c549cdca5ae6
sha256
bcf7136c7c9e8925f4b0dc1941c895b8b26ef2732839de007da9250d2db4efb8
sha512
0b8887852812f1fd7f5157e97934f500b8341cf906f9044e6fd42814fb131876025b920e9bf7bac3de776c01d7e485bcd5aa073b4c2faee8901d852a9d6ecddd
ripemd-160
88b3a9cc6703ef0e4787a616c1615257a6e74971
Diameter
160983810
Circumference
505745554.8429
Area
2.0354211577293E+16
Volume
2.1844656861725E+24
Surface area
8.1416846309173E+16
Circumference
505745554.8429
Perimeter
321967620
Area
6478946770529025
Diagonal
113832743.71225
Surface area
38873680623174150
Volume
5.2150276795348E+23
Space diagonal
139416069.05801
Perimeter
241475715
Area
2.8054662465226E+15
Altitude
69708034.529004
Surface area
2.8054662465226E+15
Volume
6.1459690604577E+22
Height
37944247.904082