20778855 is an odd 8-digits composite number following 20778854
and preceding 20778856 . In scientific notation, it is written as 2.0778855 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 10967040 positive integers (up to 20778855) that are relatively prime to 20778855.
20778855 has 16 divisors, whose sum is 33591264
The reverse of 20778855 is 55887702
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million seven hundred seventy-eight thousand eight hundred fifty-five
Scientific notation
2.0778855 × 10^7
Engineering notation
2.0778855 × 10^6
Prime Factorization
3 × 5 × 97 × 14281
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20778855
Product of the distinct prime numbers
The prime factorization of 20778855 is 3 × 5 × 97 × 14281.
Since it has a total of 4 prime factors.
2 , 5 , 8 , 46 , 790 , 595 , 7998 , 5396 , 51095 , 54803 , 398378 , 825303 , 9486384 , 6173007 , 12978529 , 39509771 , 531758655 , 911627268 , 2966451874 , 2292212230
n×2
41557710
n×3
62336565
n×4
83115420
n×5
103894275
n÷2
10389427.5
n÷3
6926285
n÷3
5194713.75
n÷5
4155771
n2
431760815111025
n3
8.9714953718738E+21
n4
1.8641740146534E+29
n5
3.873540154525E+36
2 √n
4558.3829369635
3 √n
274.92055005117
4 √n
67.51579768442
5 √n
29.075307900268
1 , 3 , 5 , 15 , 97 , 291 , 485 , 1455 , 14281 , 42843 , 71405 , 214215 , 1385257 , 4155771 , 6926285 , 20778855
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
-20778854
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 20778855 can be divided by 16 positive divisors.
The sum of these divisors (counting 20778855) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010000111101100111
3
Ternary
1110002200020020
4
Quaternary
1033100331213
5
Quinary
20304410410
6
Senary
2021210223
8
Octal
117207547
10
Decimal
20778855
12
Duodecimal
6b60973
16
Hexadecimal
13d0f67
20
Vigesimal
69h72f
36
Base36
cdd2f
md5
58fb656ae08b6f845bf141582c8d47dd
sha1
981f1b2a100c754fb58653ca190155138da3a142
sha256
bec5b2975ad5425981be855229961e54c5891c113fe0d72781763498ce9540df
sha512
07c9a07091689dcabde0929598de296998e4ff14bcee398220cd2853444f78782837e740fa3771a44728a5f84161b6e37bcef56ba2d84a9371a1c1d756b0be37
ripemd-160
d2f216f8bc861026830d27020a3db113b30d454e
Diameter
41557710
Circumference
130557396.43602
Area
1.3564166048607E+15
Volume
3.7579711935991E+22
Surface area
5.4256664194429E+15
Circumference
130557396.43602
Perimeter
83115420
Area
431760815111025
Diagonal
29385738.551584
Surface area
2590564890666150
Volume
8.9714953718738E+21
Space diagonal
35990032.583107
Perimeter
62336565
Area
1.8695791712241E+14
Altitude
17995016.291553
Surface area
1.8695791712241E+14
Volume
1.0573008691393E+21
Height
9795246.1838613