13018905 is an odd 8-digits composite number following 13018904
and preceding 13018906 . In scientific notation, it is written as 1.3018905 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 6943392 positive integers (up to 13018905) that are relatively prime to 13018905.
13018905 has 12 divisors, whose sum is 22566180
The reverse of 13018905 is 50981031
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
thirteen million eighteen thousand nine hundred five
Scientific notation
1.3018905 × 10^7
Engineering notation
1.3018905 × 10^6
Prime Factorization
3 × 3 × 5 × 289309
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4339635
Product of the distinct prime numbers
The prime factorization of 13018905 is 3 × 3 × 5 × 289309.
Since it has a total of 4 prime factors.
1 , 3 , 5 , 50 , 875 , 232 , 9611 , 3884 , 15608 , 41876 , 399704 , 837749 , 3177448 , 2169835 , 2886525 , 2662836 , 906087583 , 123881699 , 5561976330 , 8283455230
n×2
26037810
n×3
39056715
n×4
52075620
n×5
65094525
n÷2
6509452.5
n÷3
4339635
n÷3
3254726.25
n÷5
2603781
n2
169491887399025
n3
2.2065987803186E+21
n4
2.8727499894084E+28
n5
3.7400059200859E+35
2 √n
3608.1719748371
3 √n
235.24739300759
4 √n
60.068061187599
5 √n
26.479811645684
1 , 3 , 5 , 9 , 15 , 45 , 289309 , 867927 , 1446545 , 2603781 , 4339635 , 13018905
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
-13018904
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 13018905 can be divided by 12 positive divisors.
The sum of these divisors (counting 13018905) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110001101010011100011001
3
Ternary
220111102120200
4
Quaternary
301222130121
5
Quinary
11313101110
6
Senary
1143012413
8
Octal
61523431
10
Decimal
13018905
12
Duodecimal
443a109
16
Hexadecimal
c6a719
20
Vigesimal
417755
36
Base36
7r1g9
md5
bc889505212c3558817bc5711c4b13c2
sha1
f7ad64882ee96d5e68ed4b1a52d8c166dad67957
sha256
a43bbac32b67fe7fc58911a5e3713821e13419c0dd13d7b15c5cf8ac63c87ddb
sha512
2c8a38aefcd8e0c7b1018c5fba05653fe4ef3ad6baa4e87ea24ad49ee2ac5cebb9683c8bf35e8f4ed7e55adc6dfc5c809c2c929a46f5c96af966ec9cde9224cb
ripemd-160
e663322838285582841fe59e7acf19de8a038d6c
Diameter
26037810
Circumference
81800192.611567
Area
5.3247446829585E+14
Volume
9.2429793568922E+21
Surface area
2.1298978731834E+15
Circumference
81800192.611567
Perimeter
52075620
Area
169491887399025
Diagonal
18411512.018247
Surface area
1016951324394150
Volume
2.2065987803186E+21
Space diagonal
22549404.918912
Perimeter
39056715
Area
73392140111464
Altitude
11274702.459456
Surface area
73392140111464
Volume
2.6005016015354E+20
Height
6137170.672749