20997751 is an odd 8-digits composite number following 20997750
and preceding 20997752 . In scientific notation, it is written as 2.0997751 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20923272 positive integers (up to 20997751) that are relatively prime to 20997751.
20997751 has 4 divisors, whose sum is 21072232
The reverse of 20997751 is 15779902
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million nine hundred ninety-seven thousand seven hundred fifty-one
Scientific notation
2.0997751 × 10^7
Engineering notation
2.0997751 × 10^6
Prime Factorization
283 × 74197
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20997751
Product of the distinct prime numbers
The prime factorization of 20997751 is 283 × 74197.
Since it has a total of 2 prime factors.
1 , 5 , 12 , 79 , 783 , 907 , 305 , 3859 , 93586 , 20535 , 641208 , 470874 , 2905299 , 7351577 , 3397146 , 93623256 , 136680050 , 478485224 , 9378788094 , 3325688166
n×2
41995502
n×3
62993253
n×4
83991004
n×5
104988755
n÷2
10498875.5
n÷3
6999250.3333333
n÷3
5249437.75
n÷5
4199550.2
n2
440905547058001
n3
9.2580248916427E+21
n4
1.9439770142652E+29
n5
4.0819145295263E+36
2 √n
4582.330302368
3 √n
275.88256836511
4 √n
67.692911758677
5 √n
29.136310473636
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20997750
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20997751 can be divided by 4 positive divisors.
The sum of these divisors (counting 20997751) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000110011001110111
3
Ternary
1110111210111111
4
Quaternary
1100012121313
5
Quinary
20333412001
6
Senary
2030015451
8
Octal
120063167
10
Decimal
20997751
12
Duodecimal
7047587
16
Hexadecimal
1406677
20
Vigesimal
6b4e7b
36
Base36
ci1yv
md5
166195dfb3b9c3a909eddff5f5b86d5e
sha1
cca7392307293d6c8cc58d2ab1fec433aa76a2cc
sha256
6720355af52013e92acc0173e09312f3333951013136a238e2b4b00000181894
sha512
beea65a02ad8f51f84299407607be0e8b25c6746c8baf67a47c23b01e0b335a51d07253ef6be03237712fe5ec4120c9cb6d6d4c1abfca2b947a6c7dcf7d3aebe
ripemd-160
f051adb05cb20641a4786fc73d221c02286a8aca
Diameter
41995502
Circumference
131932760.56702
Area
1.3851456275644E+15
Volume
3.8779923981781E+22
Surface area
5.5405825102576E+15
Circumference
131932760.56702
Perimeter
83991004
Area
440905547058001
Diagonal
29695304.243533
Surface area
2645433282348006
Volume
9.2580248916427E+21
Space diagonal
36369171.57668
Perimeter
62993253
Area
1.9091770221085E+14
Altitude
18184585.78834
Surface area
1.9091770221085E+14
Volume
1.0910686968791E+21
Height
9898434.7478444