20783988 is an even 8-digits composite number following 20783987
and preceding 20783989 . In scientific notation, it is written as 2.0783988 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 6927984 positive integers (up to 20783988) that are relatively prime to 20783988.
20783988 has 12 divisors, whose sum is 40413380
The reverse of 20783988 is 88938702
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million seven hundred eighty-three thousand nine hundred eighty-eight
Scientific notation
2.0783988 × 10^7
Engineering notation
2.0783988 × 10^6
Prime Factorization
2 × 2 × 9 × 577333
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10391994
Product of the distinct prime numbers
The prime factorization of 20783988 is 2 × 2 × 9 × 577333.
Since it has a total of 4 prime factors.
4 , 2 , 28 , 64 , 595 , 338 , 1450 , 3060 , 81447 , 86385 , 181724 , 699883 , 1155078 , 5554641 , 24098614 , 11558519 , 6154298 , 809522729 , 4281744641 , 6349060813
n×2
41567976
n×3
62351964
n×4
83135952
n×5
103919940
n÷2
10391994
n÷3
6927996
n÷3
5195997
n÷5
4156797.6
n2
431974157184144
n3
8.9781456992254E+21
n4
1.8660167247495E+29
n5
3.8783269214993E+36
2 √n
4558.9459308046
3 √n
274.94318605941
4 √n
67.519966904647
5 √n
29.076744252854
1 , 2 , 4 , 9 , 18 , 36 , 577333 , 1154666 , 2309332 , 5195997 , 10391994 , 20783988
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
-20783987
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 20783988 can be divided by 12 positive divisors.
The sum of these divisors (counting 20783988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010010001101110100
3
Ternary
1110002221021100
4
Quaternary
1033102031310
5
Quinary
20310041423
6
Senary
2021250100
8
Octal
117221564
10
Decimal
20783988
12
Duodecimal
6b63930
16
Hexadecimal
13d2374
20
Vigesimal
69hjj8
36
Base36
cdh10
md5
11c76d96b31988b41518994b7f540e1c
sha1
0c76b7ede330bea560b35c5d5c11f7a2d139e069
sha256
4d22f0cd186a5ef00e2d6cc41c2f7b023221571ca53091bf3217ac24ae7575c4
sha512
3b0010ed64ff5ec0fed8b41aa3c5e9f99eb5822dfc0e0285a0205247cba12dd843d52028fa5761265b7a21de0e08527cf78b1216a9d3913b51afce0db37bcde7
ripemd-160
60bb30ef56fea7083bcdd381a53b3f7b25c68d3c
Diameter
41567976
Circumference
130589648.0262
Area
1.3570868387503E+15
Volume
3.760756876206E+22
Surface area
5.4283473550014E+15
Circumference
130589648.0262
Perimeter
83135952
Area
431974157184144
Diagonal
29392997.7098
Surface area
2591844943104864
Volume
8.9781456992254E+21
Space diagonal
35998923.199902
Perimeter
62351964
Area
1.8705029694992E+14
Altitude
17999461.599951
Surface area
1.8705029694992E+14
Volume
1.0580846177338E+21
Height
9797665.9032666