13145891 is an odd 8-digits composite number following 13145890
and preceding 13145892 . In scientific notation, it is written as 1.3145891 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10951200 positive integers (up to 13145891) that are relatively prime to 13145891.
13145891 has 8 divisors, whose sum is 13641600
The reverse of 13145891 is 19854131
Previous prime number is 209
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
thirteen million one hundred forty-five thousand eight hundred ninety-one
Scientific notation
1.3145891 × 10^7
Engineering notation
1.3145891 × 10^6
Prime Factorization
31 × 209 × 2029
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
13145891
Product of the distinct prime numbers
The prime factorization of 13145891 is 31 × 209 × 2029.
Since it has a total of 3 prime factors.
1 , 7 , 5 , 84 , 44 , 291 , 389 , 3534 , 72250 , 65393 , 382455 , 2302 , 1348060 , 8196879 , 85774962 , 84087114 , 573704555 , 139529784 , 6103011523 , 7463307971
n×2
26291782
n×3
39437673
n×4
52583564
n×5
65729455
n÷2
6572945.5
n÷3
4381963.6666667
n÷3
3286472.75
n÷5
2629178.2
n2
172814450183881
n3
2.2717999253422E+21
n4
2.9864834192357E+28
n5
3.925998550258E+35
2 √n
3625.7262720729
3 √n
236.00978485716
4 √n
60.214003953175
5 √n
26.531267928327
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
-13145890
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 13145891 can be divided by 8 positive divisors.
The sum of these divisors (counting 13145891) is 1, the average is 0.125.
Base
System
Value
2
Binary
110010001001011100100011
3
Ternary
220201212202212
4
Quaternary
302021130203
5
Quinary
11331132031
6
Senary
1145432335
8
Octal
62113443
10
Decimal
13145891
12
Duodecimal
449b6ab
16
Hexadecimal
c89723
20
Vigesimal
4234eb
36
Base36
7trfn
md5
1f6cd2801d704e58f32c46435cf30867
sha1
ecb5f94ae0ac64d2113b6e26e7e2981563d9610b
sha256
d4ec721e07c1ca8ea43770423ebfd5e2fc003b517c889ae32214163aff91d6a9
sha512
9ca71c3d6a0851230b0eb6753e52c202d70735e59d645dc3399328a8f80a69303d3a978cadac648cead7a737c382b645115be7bdc9c1bc6e6f6287ac9d4b3708
ripemd-160
d56d3c0632e83ff7d3da1fce4a9e840477b8d648
Diameter
26291782
Circumference
82598069.180984
Area
5.4291260713184E+14
Volume
9.516093274508E+21
Surface area
2.1716504285274E+15
Circumference
82598069.180984
Perimeter
52583564
Area
172814450183881
Diagonal
18591097.341678
Surface area
1036886701103286
Volume
2.2717999253422E+21
Space diagonal
22769351.122762
Perimeter
39437673
Area
74830852000141
Altitude
11384675.561381
Surface area
74830852000141
Volume
2.6773418878476E+20
Height
6197032.4472261