20781325 is an odd 8-digits composite number following 20781324
and preceding 20781326 . In scientific notation, it is written as 2.0781325 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 6 positive divisors.
There are 16625040 positive integers (up to 20781325) that are relatively prime to 20781325.
20781325 has 6 divisors, whose sum is 25768874
The reverse of 20781325 is 52318702
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred eighty-one thousand three hundred twenty-five
Scientific notation
2.0781325 × 10^7
Engineering notation
2.0781325 × 10^6
Prime Factorization
5 × 5 × 831253
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
4156265
Product of the distinct prime numbers
The prime factorization of 20781325 is 5 × 5 × 831253.
Since it has a total of 3 prime factors.
2 , 10 , 35 , 59 , 696 , 830 , 436 , 8519 , 14526 , 91116 , 543160 , 798813 , 1428118 , 4244303 , 1555244 , 41563381 , 867076058 , 590502899 , 8924997328 , 2048836462
n×2
41562650
n×3
62343975
n×4
83125300
n×5
103906625
n÷2
10390662.5
n÷3
6927108.3333333
n÷3
5195331.25
n÷5
4156265
n2
431863468755625
n3
8.974695099838E+21
n4
1.8650605564564E+29
n5
3.8758429568401E+36
2 √n
4558.6538583227
3 √n
274.93144296536
4 √n
67.517804009925
5 √n
29.075999108672
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20781324
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20781325 can be divided by 6 positive divisors.
The sum of these divisors (counting 20781325) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001111010001100100001101
3
Ternary
1110002210121201
4
Quaternary
1033101210031
5
Quinary
20310000300
6
Senary
2021225501
8
Octal
117214415
10
Decimal
20781325
12
Duodecimal
6b62291
16
Hexadecimal
13d190d
20
Vigesimal
69hd65
36
Base36
cdez1
md5
319c885e0455a663ae5712d73044f774
sha1
bf9d84824965fa4e2b43f2960beffe7ee05e1acc
sha256
563b390b1cf57939aac9b916634478beaabb11397748391b2e65ad772ef15a5d
sha512
85f0a613709360bbcb0ace0fb801e9963e902ed8999995cf97bea52518be76ac5a0c5c31dbc850575bc21f2795b9b3bf2e4ed8e3bb8ab8b63981020104cd89e8
ripemd-160
38922af4b3654687b00ba80f3774ec55f8837e12
Diameter
41562650
Circumference
130572915.90372
Area
1.3567391007965E+15
Volume
3.7593114925146E+22
Surface area
5.4269564031859E+15
Circumference
130572915.90372
Perimeter
83125300
Area
431863468755625
Diagonal
29389231.659083
Surface area
2591180812533750
Volume
8.974695099838E+21
Space diagonal
35994310.748601
Perimeter
62343975
Area
1.8700236745442E+14
Altitude
17997155.374301
Surface area
1.8700236745442E+14
Volume
1.0576779606962E+21
Height
9796410.5530277