20491131 is an odd 8-digits composite number following 20491130
and preceding 20491132 . In scientific notation, it is written as 2.0491131 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13660752 positive integers (up to 20491131) that are relatively prime to 20491131.
20491131 has 4 divisors, whose sum is 27321512
The reverse of 20491131 is 13119402
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million four hundred ninety-one thousand one hundred thirty-one
Scientific notation
2.0491131 × 10^7
Engineering notation
2.0491131 × 10^6
Prime Factorization
3 × 6830377
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20491131
Product of the distinct prime numbers
The prime factorization of 20491131 is 3 × 6830377.
Since it has a total of 2 prime factors.
6 , 3 , 54 , 32 , 711 , 488 , 2795 , 9568 , 23695 , 67029 , 265136 , 138479 , 6606063 , 6335032 , 37894693 , 77598302 , 205067997 , 190800210 , 8386211392 , 4465161632
n×2
40982262
n×3
61473393
n×4
81964524
n×5
102455655
n÷2
10245565.5
n÷3
6830377
n÷3
5122782.75
n÷5
4098226.2
n2
419886449659161
n3
8.6039482450908E+21
n4
1.7630463060738E+29
n5
3.6126812816823E+36
2 √n
4526.7130459087
3 √n
273.64570952813
4 √n
67.280852000467
5 √n
28.994337238166
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20491130
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20491131 can be divided by 4 positive divisors.
The sum of these divisors (counting 20491131) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001010101101111011
3
Ternary
1102120001112210
4
Quaternary
1032022231323
5
Quinary
20221204011
6
Senary
2011110203
8
Octal
116125573
10
Decimal
20491131
12
Duodecimal
6a42363
16
Hexadecimal
138ab7b
20
Vigesimal
6817gb
36
Base36
c7723
md5
5bc1b0b3bb11bd74de2196121393eb85
sha1
487bf2888e21a09377b0348afd9d43201c87de0a
sha256
7f6ef922c0ec737a1cab0590de9ada5aec004471b4e05bcc505912eb5fd17112
sha512
2982f531d73662395909fe50849bb2586e681e96ec7bff8f0f68c1a432b83c6eccf9ca41c569e7dde7d724b54b041c256d27f38ef813c20d1b5598b535556104
ripemd-160
443305b2414fb83759ca1e85c6df216f108f8f4f
Diameter
40982262
Circumference
128749573.22669
Area
1.3191121855911E+15
Volume
3.6040134131525E+22
Surface area
5.2764487423645E+15
Circumference
128749573.22669
Perimeter
81964524
Area
419886449659161
Diagonal
28978835.368564
Surface area
2519318697954966
Volume
8.6039482450908E+21
Space diagonal
35491679.99655
Perimeter
61473393
Area
1.8181616605484E+14
Altitude
17745839.998275
Surface area
1.8181616605484E+14
Volume
1.013985024847E+21
Height
9659611.7895213