20997585 is an odd 8-digits composite number following 20997584
and preceding 20997586 . In scientific notation, it is written as 2.0997585 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 9521280 positive integers (up to 20997585) that are relatively prime to 20997585.
20997585 has 16 divisors, whose sum is 24729600
The reverse of 20997585 is 58579902
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million nine hundred ninety-seven thousand five hundred eighty-five
Scientific notation
2.0997585 × 10^7
Engineering notation
2.0997585 × 10^6
Prime Factorization
45 × 7 × 191 × 349
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20997585
Product of the distinct prime numbers
The prime factorization of 20997585 is 45 × 7 × 191 × 349.
Since it has a total of 4 prime factors.
1 , 5 , 85 , 97 , 583 , 380 , 3178 , 4838 , 88574 , 42627 , 886881 , 26393 , 1836150 , 3747567 , 60674346 , 57496690 , 664984318 , 503360606 , 1595063892 , 3007532427
n×2
41995170
n×3
62992755
n×4
83990340
n×5
104987925
n÷2
10498792.5
n÷3
6999195
n÷3
5249396.25
n÷5
4199517
n2
440898575832225
n3
9.2578053224161E+21
n4
1.9439155417088E+29
n5
4.0817531819852E+36
2 √n
4582.3121892774
3 √n
275.88184135667
4 √n
67.692777969865
5 √n
29.136264405437
1 , 7 , 45 , 191 , 315 , 349 , 1337 , 2443 , 8595 , 15705 , 60165 , 66659 , 109935 , 466613 , 2999655 , 20997585
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
-20997584
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 20997585 can be divided by 16 positive divisors.
The sum of these divisors (counting 20997585) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000110010111010001
3
Ternary
1110111210021100
4
Quaternary
1100012113101
5
Quinary
20333410320
6
Senary
2030015013
8
Octal
120062721
10
Decimal
20997585
12
Duodecimal
7047469
16
Hexadecimal
14065d1
20
Vigesimal
6b4dj5
36
Base36
ci1u9
md5
e9b0a626374df7b8c95d49b4e2d8801f
sha1
83021aa2c8405aa0fd32e1d42abfd3c58b53bc17
sha256
36a94ec02104fc4a8d578a5eaa76fb681e73e49224ff56d31beef1ab6b3f695d
sha512
f8117e97ce0942d6f99aca1a64cc24e7222414b4cc0c822d370b40c310202cfbe60d39ef1c8fd05103cd90e3e76b0d85ef5d66c84563546f8b43f6ad17edf7ae
ripemd-160
e18c1f750dd089f4dcdb7734d0520bdf31df52d7
Diameter
41995170
Circumference
131931717.55825
Area
1.3851237268127E+15
Volume
3.8779004252356E+22
Surface area
5.5404949072509E+15
Circumference
131931717.55825
Perimeter
83990340
Area
440898575832225
Diagonal
29695069.484082
Surface area
2645391454993350
Volume
9.2578053224161E+21
Space diagonal
36368884.056246
Perimeter
62992755
Area
1.9091468358154E+14
Altitude
18184442.028123
Surface area
1.9091468358154E+14
Volume
1.0910428203976E+21
Height
9898356.494694