20784957 is an odd 8-digits composite number following 20784956
and preceding 20784958 . In scientific notation, it is written as 2.0784957 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 13366080 positive integers (up to 20784957) that are relatively prime to 20784957.
20784957 has 16 divisors, whose sum is 28712448
The reverse of 20784957 is 75948702
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million seven hundred eighty-four thousand nine hundred fifty-seven
Scientific notation
2.0784957 × 10^7
Engineering notation
2.0784957 × 10^6
Prime Factorization
3 × 61 × 53 × 2143
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20784957
Product of the distinct prime numbers
The prime factorization of 20784957 is 3 × 61 × 53 × 2143.
Since it has a total of 4 prime factors.
5 , 4 , 72 , 17 , 966 , 85 , 7135 , 1262 , 15677 , 80912 , 704321 , 192934 , 7002467 , 7081965 , 58718100 , 27259247 , 807675406 , 456029630 , 9630417151 , 7833017489
n×2
41569914
n×3
62354871
n×4
83139828
n×5
103924785
n÷2
10392478.5
n÷3
6928319
n÷3
5196239.25
n÷5
4156991.4
n2
432014437491849
n3
8.9794015066473E+21
n4
1.866364742014E+29
n5
3.8792310909077E+36
2 √n
4559.0522041319
3 √n
274.94745883271
4 √n
67.5207538771
5 √n
29.077015373486
1 , 3 , 53 , 61 , 159 , 183 , 2143 , 3233 , 6429 , 9699 , 113579 , 130723 , 340737 , 392169 , 6928319 , 20784957
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
-20784956
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 20784957 can be divided by 16 positive divisors.
The sum of these divisors (counting 20784957) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010010011100111101
3
Ternary
1110002222121020
4
Quaternary
1033102130331
5
Quinary
20310104312
6
Senary
2021254353
8
Octal
117223475
10
Decimal
20784957
12
Duodecimal
6b643b9
16
Hexadecimal
13d273d
20
Vigesimal
69i27h
36
Base36
cdhrx
md5
96589aa283d1938c53e60d5fbae41cc9
sha1
663dd65f0b78ee10c4d38790c4a50c07a4b7dcdb
sha256
30786a744f0fbc66b9eaee4f75d8821570be1b93b0a7d0f0d67c200176ac8ccb
sha512
04d87c148a6588674d28ed82b01fa29a2e02ab329b70ac889ddbc412d8643cc819243e43f77d144d0c2fff5b3a12ecb5c577904b0e0e1872813a5f2da69ee140
ripemd-160
c87569b05be1e6e6e7332c537e0abdeb53cbecc4
Diameter
41569914
Circumference
130595736.43276
Area
1.3572133830691E+15
Volume
3.7612829075888E+22
Surface area
5.4288535322765E+15
Circumference
130595736.43276
Perimeter
83139828
Area
432014437491849
Diagonal
29394368.082742
Surface area
2592086624951094
Volume
8.9794015066473E+21
Space diagonal
36000601.557134
Perimeter
62354871
Area
1.8706773883479E+14
Altitude
18000300.778567
Surface area
1.8706773883479E+14
Volume
1.0582326160578E+21
Height
9798122.6942472