19982721 is an odd 8-digits composite number following 19982720
and preceding 19982722 . In scientific notation, it is written as 1.9982721 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 11991120 positive integers (up to 19982721) that are relatively prime to 19982721.
19982721 has 16 divisors, whose sum is 29352960
The reverse of 19982721 is 12728991
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
nineteen million nine hundred eighty-two thousand seven hundred twenty-one
Scientific notation
1.9982721 × 10^7
Engineering notation
1.9982721 × 10^6
Prime Factorization
3 × 11 × 103 × 5879
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19982721
Product of the distinct prime numbers
The prime factorization of 19982721 is 3 × 11 × 103 × 5879.
Since it has a total of 4 prime factors.
6 , 8 , 39 , 100 , 198 , 227 , 1959 , 7337 , 6511 , 51670 , 863771 , 724281 , 2476791 , 2495212 , 22385782 , 45698680 , 54350095 , 288547096 , 62905407 , 3702165083
n×2
39965442
n×3
59948163
n×4
79930884
n×5
99913605
n÷2
9991360.5
n÷3
6660907
n÷3
4995680.25
n÷5
3996544.2
n2
399309138563841
n3
7.9792831086716E+21
n4
1.594477881406E+29
n5
3.1862006644807E+36
2 √n
4470.2036866344
3 √n
271.36356843349
4 √n
66.85958186105
5 √n
28.849010711964
1 , 3 , 11 , 33 , 103 , 309 , 1133 , 3399 , 5879 , 17637 , 64669 , 194007 , 605537 , 1816611 , 6660907 , 19982721
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
-19982720
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 19982721 can be divided by 16 positive divisors.
The sum of these divisors (counting 19982721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100001110100110000001
3
Ternary
1101121020010210
4
Quaternary
1030032212001
5
Quinary
20103421341
6
Senary
1552144333
8
Octal
114164601
10
Decimal
19982721
12
Duodecimal
68380a9
16
Hexadecimal
130e981
20
Vigesimal
64hgg1
36
Base36
bwarl
md5
e07bfdfbac577a79de5783c50d37c362
sha1
72cf652007a5ee3f0f2772ef05f571c33c8723ab
sha256
5c1076f26376aaed1583acf9b1cfcd0c1dfd2fd6100bb1de8b17df36e4c69fc3
sha512
5e7c581aab9b849ae591444b684c115e63371d3a4a22861e0696c5664f688645adcb9518982fbdcaf856fb0fe08a9fcfb0c26e83e1049f36052fdd0f7fcdee6a
ripemd-160
4f9088671346bd8b23db45d8296ded82d73667b3
Diameter
39965442
Circumference
125555138.98467
Area
1.2544666562234E+15
Volume
3.3423542926821E+22
Surface area
5.0178666248937E+15
Circumference
125555138.98467
Perimeter
79930884
Area
399309138563841
Diagonal
28259835.051318
Surface area
2395854831383046
Volume
7.9792831086716E+21
Space diagonal
34611088.045474
Perimeter
59948163
Area
1.7290592897978E+14
Altitude
17305544.022737
Surface area
1.7290592897978E+14
Volume
9.4036753252482E+20
Height
9419945.0171059