20198787 is an odd 8-digits composite number following 20198786
and preceding 20198788 . In scientific notation, it is written as 2.0198787 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 11542152 positive integers (up to 20198787) that are relatively prime to 20198787.
20198787 has 8 divisors, whose sum is 30779136
The reverse of 20198787 is 78789102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million one hundred ninety-eight thousand seven hundred eighty-seven
Scientific notation
2.0198787 × 10^7
Engineering notation
2.0198787 × 10^6
Prime Factorization
3 × 7 × 961847
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20198787
Product of the distinct prime numbers
The prime factorization of 20198787 is 3 × 7 × 961847.
Since it has a total of 3 prime factors.
7 , 4 , 85 , 28 , 848 , 165 , 279 , 8685 , 43878 , 38170 , 380392 , 537953 , 7585794 , 7198344 , 97929231 , 84367791 , 314714426 , 539102097 , 4216438844 , 293701585
n×2
40397574
n×3
60596361
n×4
80795148
n×5
100993935
n÷2
10099393.5
n÷3
6732929
n÷3
5049696.75
n÷5
4039757.4
n2
407990996271369
n3
8.2409232316032E+21
n4
1.664566530385E+29
n5
3.3622224794576E+36
2 √n
4494.3060643441
3 √n
272.33811668229
4 √n
67.039585800809
5 √n
28.911129425453
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
-20198786
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 20198787 can be divided by 8 positive divisors.
The sum of these divisors (counting 20198787) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000011010110000011
3
Ternary
1102000012112020
4
Quaternary
1031003112003
5
Quinary
20132330122
6
Senary
2000532523
8
Octal
115032603
10
Decimal
20198787
12
Duodecimal
6921143
16
Hexadecimal
1343583
20
Vigesimal
664gj7
36
Base36
c0xhf
md5
4fd46105bc04cccaeba845b58c431956
sha1
0aca20956f876eb19b722ea362a4ac9843546724
sha256
e764f293261df301ecc62a8824456d232f8d25bd2b68a915a8d31eb4e6bcc955
sha512
4343ef21a8d30d2caf28af1395913cee7989915fa9eaf6f1cafc6727ed0ef64aecb035950aa376a863c21fa4dbb850cafd3364a1f5041d3c5f3dd0bc0285ee74
ripemd-160
63a62b2ab8793e40d75155c48ddc6b1bbf9baf07
Diameter
40397574
Circumference
126912721.70125
Area
1.2817415166169E+15
Volume
3.4519498510936E+22
Surface area
5.1269660664677E+15
Circumference
126912721.70125
Perimeter
80795148
Area
407990996271369
Diagonal
28565398.518885
Surface area
2447945977628214
Volume
8.2409232316032E+21
Space diagonal
34985325.335262
Perimeter
60596361
Area
1.7666528364316E+14
Altitude
17492662.667631
Surface area
1.7666528364316E+14
Volume
9.7120211671739E+20
Height
9521799.5062951