20495989 is an odd 8-digits composite number following 20495988
and preceding 20495990 . In scientific notation, it is written as 2.0495989 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 20482924 positive integers (up to 20495989) that are relatively prime to 20495989.
20495989 has 4 divisors, whose sum is 20509056
The reverse of 20495989 is 98959402
Previous prime number is 11243
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million four hundred ninety-five thousand nine hundred eighty-nine
Scientific notation
2.0495989 × 10^7
Engineering notation
2.0495989 × 10^6
Prime Factorization
11243 × 1823
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20495989
Product of the distinct prime numbers
The prime factorization of 20495989 is 11243 × 1823.
Since it has a total of 2 prime factors.
10 , 2 , 87 , 89 , 917 , 831 , 6948 , 6723 , 48944 , 70481 , 713095 , 208637 , 8777861 , 6536564 , 39129122 , 49806981 , 96486391 , 923958262 , 4720795980 , 3892904069
n×2
40991978
n×3
61487967
n×4
81983956
n×5
102479945
n÷2
10247994.5
n÷3
6831996.3333333
n÷3
5123997.25
n÷5
4099197.8
n2
420085565088121
n3
8.6100691211049E+21
n4
1.7647188199541E+29
n5
3.6169657521871E+36
2 √n
4527.2496065492
3 √n
273.66733296147
4 √n
67.284839351441
5 √n
28.995711892741
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
-20495988
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 20495989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20495989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001011111001110101
3
Ternary
1102120022012201
4
Quaternary
1032023321311
5
Quinary
20221332424
6
Senary
2011144501
8
Octal
116137165
10
Decimal
20495989
12
Duodecimal
6a45131
16
Hexadecimal
138be75
20
Vigesimal
681jj9
36
Base36
c7at1
md5
705048c57db6e9927a0af024d9afb23b
sha1
ca48272d090a59db89cfaaa6efd2477c289edb2e
sha256
21ba73497527b4849b7c2da46e5ec84d442ee61285be8590b8b1a49151bb2d7e
sha512
0cce269834083567803dfb81b1d6069eada4b2436f795014fc787662d79d70bdf4d6d39880b36727b0da4545e5f0a8225ab282009f0146f8f164e9567222a905
ripemd-160
f5f8d7a32cf421b0f8b50562c000ae180479efda
Diameter
40991978
Circumference
128780096.94091
Area
1.31973772516E+15
Volume
3.6065773197018E+22
Surface area
5.2789509006398E+15
Circumference
128780096.94091
Perimeter
81983956
Area
420085565088121
Diagonal
28985705.61805
Surface area
2520513390528726
Volume
8.6100691211049E+21
Space diagonal
35500094.299373
Perimeter
61487967
Area
1.8190238556473E+14
Altitude
17750047.149686
Surface area
1.8190238556473E+14
Volume
1.014706377003E+21
Height
9661901.8726833