20771921 is an odd 8-digits composite number following 20771920
and preceding 20771922 . In scientific notation, it is written as 2.0771921 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 18822672 positive integers (up to 20771921) that are relatively prime to 20771921.
20771921 has 8 divisors, whose sum is 22816320
The reverse of 20771921 is 12917702
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million seven hundred seventy-one thousand nine hundred twenty-one
Scientific notation
2.0771921 × 10^7
Engineering notation
2.0771921 × 10^6
Prime Factorization
23 × 19 × 47533
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20771921
Product of the distinct prime numbers
The prime factorization of 20771921 is 23 × 19 × 47533.
Since it has a total of 3 prime factors.
3 , 5 , 75 , 72 , 527 , 856 , 5126 , 1918 , 92797 , 54705 , 86875 , 193965 , 4127096 , 1878607 , 39335705 , 27260878 , 573263621 , 987542350 , 40953022 , 8472300881
n×2
41543842
n×3
62315763
n×4
83087684
n×5
103859605
n÷2
10385960.5
n÷3
6923973.6666667
n÷3
5192980.25
n÷5
4154384.2
n2
431472702030241
n3
8.9625168802287E+21
n4
1.8616869259728E+29
n5
3.8670813753039E+36
2 √n
4557.6222967683
3 √n
274.88996589594
4 √n
67.510164395951
5 √n
29.073367128254
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20771920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20771921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20771921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111001111010001010001
3
Ternary
1110002022201102
4
Quaternary
1033033101101
5
Quinary
20304200141
6
Senary
2021114145
8
Octal
117172121
10
Decimal
20771921
12
Duodecimal
6b58955
16
Hexadecimal
13cf451
20
Vigesimal
69g9g1
36
Base36
cd7pt
md5
b1e4a087f44619b52d541dfc43936bff
sha1
c36d202b9c14611c9027b395cf1048ec4d2c2829
sha256
882b597a0ddab54695a48d669d6b1a76c8e5497eda01cb4fbedafd16c00fecc6
sha512
29c71f76f76de1e61521a34c132dceaf74620a8a8e584f5b334f8e4e7244387f70e5081dcbbba435b29d158c961b90ce3f6a3dfe3565da7c328cbc01002906a6
ripemd-160
3fca6496e57ce084f265436633692614e6534e75
Diameter
41543842
Circumference
130513828.8291
Area
1.3555114709227E+15
Volume
3.7542102918135E+22
Surface area
5.422045883691E+15
Circumference
130513828.8291
Perimeter
83087684
Area
431472702030241
Diagonal
29375932.394743
Surface area
2588836212181446
Volume
8.9625168802287E+21
Space diagonal
35978022.542807
Perimeter
62315763
Area
1.8683316049885E+14
Altitude
17989011.271403
Surface area
1.8683316049885E+14
Volume
1.0562427437514E+21
Height
9791977.4649142