20997757 is an odd 8-digits composite number following 20997756
and preceding 20997758 . In scientific notation, it is written as 2.0997757 × 10^7.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 18298800 positive integers (up to 20997757) that are relatively prime to 20997757.
20997757 has 16 divisors, whose sum is 23869440
The reverse of 20997757 is 75779902
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million nine hundred ninety-seven thousand seven hundred fifty-seven
Scientific notation
2.0997757 × 10^7
Engineering notation
2.0997757 × 10^6
Prime Factorization
11 × 31 × 139 × 443
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20997757
Product of the distinct prime numbers
The prime factorization of 20997757 is 11 × 31 × 139 × 443.
Since it has a total of 4 prime factors.
5 , 8 , 70 , 58 , 411 , 406 , 8368 , 4798 , 70298 , 78548 , 322100 , 11516 , 1783584 , 5094737 , 54899883 , 54301479 , 562650207 , 156627549 , 1198734953 , 996951932
n×2
41995514
n×3
62993271
n×4
83991028
n×5
104988785
n÷2
10498878.5
n÷3
6999252.3333333
n÷3
5249439.25
n÷5
4199551.4
n2
440905799031049
n3
9.2580328279448E+21
n4
1.9439792361921E+29
n5
4.0819203614607E+36
2 √n
4582.3309570567
3 √n
275.88259464246
4 √n
67.692916594402
5 √n
29.136312138746
1 , 11 , 31 , 139 , 341 , 443 , 1529 , 4309 , 4873 , 13733 , 47399 , 61577 , 151063 , 677347 , 1908887 , 20997757
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
-20997756
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 20997757 can be divided by 16 positive divisors.
The sum of these divisors (counting 20997757) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000110011001111101
3
Ternary
1110111210111201
4
Quaternary
1100012121331
5
Quinary
20333412012
6
Senary
2030015501
8
Octal
120063175
10
Decimal
20997757
12
Duodecimal
7047591
16
Hexadecimal
140667d
20
Vigesimal
6b4e7h
36
Base36
ci1z1
md5
c5935ee37d9b6821817a1e0591198fe7
sha1
85aec5cf7025cf2ee6b1a8be0d0fa120ad140e78
sha256
bf7c5fe5b9996d1a380b0ee1ff569eb312fb01191962719c052aa032a8b7e24e
sha512
88d28288fe3ff33f0dd95d95370ed09f690aacac02c519504a57ef96aa7c5a9a4dda5d0f3206a429b6bece1d6c3b7145960ff0c084369dd7c63ce99f6084b69a
ripemd-160
5afb621a65553a62ef3ce40bf4b715fa8a808148
Diameter
41995514
Circumference
131932798.26613
Area
1.3851464191611E+15
Volume
3.8779957225286E+22
Surface area
5.5405856766443E+15
Circumference
131932798.26613
Perimeter
83991028
Area
440905799031049
Diagonal
29695312.728815
Surface area
2645434794186294
Volume
9.2580328279448E+21
Space diagonal
36369181.968985
Perimeter
62993271
Area
1.9091781131838E+14
Altitude
18184590.984493
Surface area
1.9091781131838E+14
Volume
1.0910696321812E+21
Height
9898437.5762715