20831405 is an odd 8-digits composite number following 20831404
and preceding 20831406 . In scientific notation, it is written as 2.0831405 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 14284368 positive integers (up to 20831405) that are relatively prime to 20831405.
20831405 has 8 divisors, whose sum is 28568832
The reverse of 20831405 is 50413802
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million eight hundred thirty-one thousand four hundred five
Scientific notation
2.0831405 × 10^7
Engineering notation
2.0831405 × 10^6
Prime Factorization
7 × 5 × 595183
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20831405
Product of the distinct prime numbers
The prime factorization of 20831405 is 7 × 5 × 595183.
Since it has a total of 3 prime factors.
9 , 6 , 80 , 56 , 117 , 665 , 6260 , 1067 , 92738 , 91788 , 669005 , 885370 , 2508305 , 7734952 , 67287598 , 27354281 , 149526550 , 990655219 , 4110804513 , 5060737611
n×2
41662810
n×3
62494215
n×4
83325620
n×5
104157025
n÷2
10415702.5
n÷3
6943801.6666667
n÷3
5207851.25
n÷5
4166281
n2
433947434274025
n3
9.0397347520731E+21
n4
1.8831037571301E+29
n5
3.9227697021799E+36
2 √n
4564.1434026551
3 √n
275.15211419077
4 √n
67.558444347506
5 √n
29.089999413656
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
-20831404
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 20831405 can be divided by 8 positive divisors.
The sum of these divisors (counting 20831405) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011101110010101101
3
Ternary
1110012100022112
4
Quaternary
1033131302231
5
Quinary
20313101110
6
Senary
2022253405
8
Octal
117356255
10
Decimal
20831405
12
Duodecimal
6b87265
16
Hexadecimal
13ddcad
20
Vigesimal
6a3ia5
36
Base36
cehm5
md5
158c03f60bb042454b964b06db8e342e
sha1
ac5fcd0ed22a94d3253efec50e7f12b939e3dbc3
sha256
7124127dda02a34fc9343d9570d68412879d367640567954f4fa5f92444df37d
sha512
cba5231e72f14ed52bcbc25ba3a067b933b17195368852e418f7272fbb5824f76fca5d9dd9acaf56fd896f1a3363e7dc8c7031f6dad5a9ba1dfc3344d8478c35
ripemd-160
5bc0e45c2397ed9432f9afeafb05feffaea3266a
Diameter
41662810
Circumference
130887577.82391
Area
1.3632860715594E+15
Volume
3.7865552383351E+22
Surface area
5.4531442862377E+15
Circumference
130887577.82391
Perimeter
83325620
Area
433947434274025
Diagonal
29460055.474287
Surface area
2603684605644150
Volume
9.0397347520731E+21
Space diagonal
36081051.853044
Perimeter
62494215
Area
1.8790475099419E+14
Altitude
18040525.926522
Surface area
1.8790475099419E+14
Volume
1.0653429572198E+21
Height
9820018.4914289