20787243 is an odd 8-digits composite number following 20787242
and preceding 20787244 . In scientific notation, it is written as 2.0787243 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12970496 positive integers (up to 20787243) that are relatively prime to 20787243.
20787243 has 16 divisors, whose sum is 29509920
The reverse of 20787243 is 34278702
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million seven hundred eighty-seven thousand two hundred forty-three
Scientific notation
2.0787243 × 10^7
Engineering notation
2.0787243 × 10^6
Prime Factorization
3 × 17 × 197 × 2069
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20787243
Product of the distinct prime numbers
The prime factorization of 20787243 is 3 × 17 × 197 × 2069.
Since it has a total of 4 prime factors.
5 , 1 , 9 , 27 , 817 , 564 , 2205 , 746 , 29488 , 86260 , 641650 , 482571 , 6429848 , 2651974 , 47123337 , 88923667 , 347044682 , 836159409 , 9937946869 , 4376567834
n×2
41574486
n×3
62361729
n×4
83148972
n×5
103936215
n÷2
10393621.5
n÷3
6929081
n÷3
5196810.75
n÷5
4157448.6
n2
432109471541049
n3
8.9823645875254E+21
n4
1.8671859539548E+29
n5
3.8813648151046E+36
2 √n
4559.3029072436
3 √n
274.95753834758
4 √n
67.52261034086
5 √n
29.077654943085
1 , 3 , 17 , 51 , 197 , 591 , 2069 , 3349 , 6207 , 10047 , 35173 , 105519 , 407593 , 1222779 , 6929081 , 20787243
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20787242
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20787243 can be divided by 16 positive divisors.
The sum of these divisors (counting 20787243) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010011000000101011
3
Ternary
1110010002201220
4
Quaternary
1033103000223
5
Quinary
20310142433
6
Senary
2021313123
8
Octal
117230053
10
Decimal
20787243
12
Duodecimal
6b657a3
16
Hexadecimal
13d302b
20
Vigesimal
69i823
36
Base36
cdjjf
md5
6d8c07ef967de67ecd69925e3cafc9f4
sha1
c0501389d55b3f44806f625603b5727feed8f279
sha256
8cf5edc66a8be927d19ebfbe9131769786ce1e71a705311f1da18ea71ff43c2a
sha512
10d4a72beed529922c8d3835c3b6546453e76154f111f645293d21543e3bca90785cf8724da4c856bdf2e34c236225cc7f82cbcd0aa232e80786706a9128aa8d
ripemd-160
8e2e50afcd38673a09252f954008e2dfae47c8e0
Diameter
41574486
Circumference
130610099.79437
Area
1.3575119413399E+15
Volume
3.7625240800046E+22
Surface area
5.4300477653597E+15
Circumference
130610099.79437
Perimeter
83148972
Area
432109471541049
Diagonal
29397600.974945
Surface area
2592656829246294
Volume
8.9823645875254E+21
Space diagonal
36004561.02528
Perimeter
62361729
Area
1.8710888978521E+14
Altitude
18002280.51264
Surface area
1.8710888978521E+14
Volume
1.0585818184882E+21
Height
9799200.3249817