20954789 is an odd 8-digits composite number following 20954788
and preceding 20954790 . In scientific notation, it is written as 2.0954789 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 20905740 positive integers (up to 20954789) that are relatively prime to 20954789.
20954789 has 4 divisors, whose sum is 21003840
The reverse of 20954789 is 98745902
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million nine hundred fifty-four thousand seven hundred eighty-nine
Scientific notation
2.0954789 × 10^7
Engineering notation
2.0954789 × 10^6
Prime Factorization
431 × 48619
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20954789
Product of the distinct prime numbers
The prime factorization of 20954789 is 431 × 48619.
Since it has a total of 2 prime factors.
2 , 5 , 25 , 65 , 6 , 819 , 6771 , 6389 , 28 , 27195 , 982264 , 816633 , 6217599 , 3189648 , 14429916 , 95185462 , 130741379 , 802802120 , 8202061337 , 5113204785
n×2
41909578
n×3
62864367
n×4
83819156
n×5
104773945
n÷2
10477394.5
n÷3
6984929.6666667
n÷3
5238697.25
n÷5
4190957.8
n2
439103182034521
n3
9.201314528762E+21
n4
1.9281160447284E+29
n5
4.0403264884799E+36
2 √n
4577.6401125471
3 √n
275.69428535013
4 √n
67.658259751098
5 √n
29.124377958769
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
-20954788
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 20954789 can be divided by 4 positive divisors.
The sum of these divisors (counting 20954789) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111011111010100101
3
Ternary
1110102121120022
4
Quaternary
1033323322211
5
Quinary
20331023124
6
Senary
2025044525
8
Octal
117737245
10
Decimal
20954789
12
Duodecimal
7026745
16
Hexadecimal
13fbea5
20
Vigesimal
6aj6j9
36
Base36
ch4th
md5
53f85bd1524a317b74df5e8f5798bf90
sha1
b16094d3447ac2f095b6710786e1c73ecfb91764
sha256
918a918950adee9ec23a0d5f51096c256f84469ee1220debb599f248a63ee0ec
sha512
880b97a903dcfe05b3f2439ca54171cf4c0cb3dd5bb15383aaf809f11113d586eed18dd93c8236b3400c4e637b53c84bd0d5f9910a3db9e480c72a7a194c325f
ripemd-160
507adf7ae67d69a58e9783b19fd909562d5c2642
Diameter
41909578
Circumference
131662822.35985
Area
1.3794833308476E+15
Volume
3.8542376169237E+22
Surface area
5.5179333233902E+15
Circumference
131662822.35985
Perimeter
83819156
Area
439103182034521
Diagonal
29634546.800467
Surface area
2634619092207126
Volume
9.201314528762E+21
Space diagonal
36294759.209885
Perimeter
62864367
Area
1.9013725526224E+14
Altitude
18147379.604943
Surface area
1.9013725526224E+14
Volume
1.0843853165196E+21
Height
9878182.2668222