20789988 is an even 8-digits composite number following 20789987
and preceding 20789989 . In scientific notation, it is written as 2.0789988 × 10^7.
The sum of its digits is 51. It has a total of 4 prime factors and 12 positive divisors.
There are 6929992 positive integers (up to 20789988) that are relatively prime to 20789988.
20789988 has 12 divisors, whose sum is 48510000
The reverse of 20789988 is 88998702
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty million seven hundred eighty-nine thousand nine hundred eighty-eight
Scientific notation
2.0789988 × 10^7
Engineering notation
2.0789988 × 10^6
Prime Factorization
2 × 2 × 3 × 1732499
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10394994
Product of the distinct prime numbers
The prime factorization of 20789988 is 2 × 2 × 3 × 1732499.
Since it has a total of 4 prime factors.
5 , 7 , 65 , 6 , 580 , 450 , 6499 , 778 , 63079 , 25347 , 319400 , 629830 , 7103673 , 7928384 , 54320491 , 69861435 , 974081361 , 131826618 , 672430877 , 8854972763
n×2
41579976
n×3
62369964
n×4
83159952
n×5
103949940
n÷2
10394994
n÷3
6929996
n÷3
5197497
n÷5
4157997.6
n2
432223601040144
n3
8.9859234789414E+21
n4
1.8681724129611E+29
n5
3.8839282047392E+36
2 √n
4559.6039301676
3 √n
274.96964072567
4 √n
67.524839356844
5 √n
29.078422855858
1 , 2 , 3 , 4 , 6 , 12 , 1732499 , 3464998 , 5197497 , 6929996 , 10394994 , 20789988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20789987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20789988 can be divided by 12 positive divisors.
The sum of these divisors (counting 20789988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010011101011100100
3
Ternary
1110010020111120
4
Quaternary
1033103223210
5
Quinary
20310234423
6
Senary
2021333540
8
Octal
117235344
10
Decimal
20789988
12
Duodecimal
6b672b0
16
Hexadecimal
13d3ae4
20
Vigesimal
69iej8
36
Base36
cdlno
md5
8b157cabac4f17cdb516439b641fb4dc
sha1
0c617f5403116641cce00518857e32510c655113
sha256
9f69c9fc3a08d51ca9a395f3dc3cf13a85eed4d1b3b8f649ece17e471f31d965
sha512
9239a09557c3c7290c2ae8d0b5976cf5981a3e2144daf4d3df71b6299a4b1867ace00ebef0f5c28465ad490c4966c65f8c0878a943cf252b3b75ec6026f8df05
ripemd-160
b01677c175625072eca58895f9b2582c063b6f37
Diameter
41579976
Circumference
130627347.13804
Area
1.3578704897358E+15
Volume
3.764014824955E+22
Surface area
5.4314819589434E+15
Circumference
130627347.13804
Perimeter
83159952
Area
432223601040144
Diagonal
29401482.991174
Surface area
2593341606240864
Volume
8.9859234789414E+21
Space diagonal
36009315.504747
Perimeter
62369964
Area
1.8715830930798E+14
Altitude
18004657.752374
Surface area
1.8715830930798E+14
Volume
1.0590012378638E+21
Height
9800494.3303913