20784881 is an odd 8-digits composite number following 20784880
and preceding 20784882 . In scientific notation, it is written as 2.0784881 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 19014912 positive integers (up to 20784881) that are relatively prime to 20784881.
20784881 has 8 divisors, whose sum is 22583400
The reverse of 20784881 is 18848702
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million seven hundred eighty-four thousand eight hundred eighty-one
Scientific notation
2.0784881 × 10^7
Engineering notation
2.0784881 × 10^6
Prime Factorization
13 × 113 × 14149
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20784881
Product of the distinct prime numbers
The prime factorization of 20784881 is 13 × 113 × 14149.
Since it has a total of 3 prime factors.
9 , 9 , 44 , 3 , 879 , 455 , 2446 , 8614 , 4131 , 66543 , 719201 , 246597 , 6792272 , 9923223 , 18169555 , 9561346 , 137237503 , 516530835 , 8462912417 , 1263817216
n×2
41569762
n×3
62354643
n×4
83139524
n×5
103924405
n÷2
10392440.5
n÷3
6928293.6666667
n÷3
5196220.25
n÷5
4156976.2
n2
432011278184161
n3
8.9793030077157E+21
n4
1.8663374447831E+29
n5
3.8791601695661E+36
2 √n
4559.0438690585
3 √n
274.94712371804
4 √n
67.520692154765
5 √n
29.076994109488
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20784880
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20784881 can be divided by 8 positive divisors.
The sum of these divisors (counting 20784881) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010010011011110001
3
Ternary
1110002222111102
4
Quaternary
1033102123301
5
Quinary
20310104011
6
Senary
2021254145
8
Octal
117223361
10
Decimal
20784881
12
Duodecimal
6b64355
16
Hexadecimal
13d26f1
20
Vigesimal
69i241
36
Base36
cdhpt
md5
2653e7c6d6f29619d4760426615a1dcf
sha1
5efdee324df036e2833898b0be431305c3a444b4
sha256
6c01ceedce47c9b1095810d083a0e5381ee5907be6ebb4a6d743195072c77e94
sha512
897968e1f7d765b8027425fe85a55e3e1b3c8e72172e2b9be85512692809003827d7ac407aa11e7ddf3033698fecfc7f1906e56a1d9b3bf87d7d8d985922efa6
ripemd-160
1fc3eecb58c8daee5de175618319584c4d20b410
Diameter
41569762
Circumference
130595258.91068
Area
1.3572034578113E+15
Volume
3.7612416484528E+22
Surface area
5.4288138312452E+15
Circumference
130595258.91068
Perimeter
83139524
Area
432011278184161
Diagonal
29394260.602511
Surface area
2592067669104966
Volume
8.9793030077157E+21
Space diagonal
36000469.921273
Perimeter
62354643
Area
1.8706637081443E+14
Altitude
18000234.960637
Surface area
1.8706637081443E+14
Volume
1.0582210078474E+21
Height
9798086.8675036