20946921 is an odd 8-digits composite number following 20946920
and preceding 20946922 . In scientific notation, it is written as 2.0946921 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13587120 positive integers (up to 20946921) that are relatively prime to 20946921.
20946921 has 4 divisors, whose sum is 21135744
The reverse of 20946921 is 12964902
Previous prime number is 111
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred forty-six thousand nine hundred twenty-one
Scientific notation
2.0946921 × 10^7
Engineering notation
2.0946921 × 10^6
Prime Factorization
111 × 188711
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20946921
Product of the distinct prime numbers
The prime factorization of 20946921 is 111 × 188711.
Since it has a total of 2 prime factors.
3 , 10 , 54 , 50 , 775 , 28 , 3594 , 2508 , 99873 , 78494 , 843371 , 423745 , 8261391 , 6617368 , 9233610 , 49455716 , 820176411 , 574538362 , 282755584 , 5708214679
n×2
41893842
n×3
62840763
n×4
83787684
n×5
104734605
n÷2
10473460.5
n÷3
6982307
n÷3
5236730.25
n÷5
4189384.2
n2
438773499380241
n3
9.1909538284115E+21
n4
1.9252218375838E+29
n5
4.0327469739343E+36
2 √n
4576.7806370854
3 √n
275.65977559069
4 √n
67.651907859908
5 √n
29.122190534885
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
-20946920
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 20946921 can be divided by 4 positive divisors.
The sum of these divisors (counting 20946921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111001111111101001
3
Ternary
1110102012202220
4
Quaternary
1033321333221
5
Quinary
20330300141
6
Senary
2024544253
8
Octal
117717751
10
Decimal
20946921
12
Duodecimal
7022089
16
Hexadecimal
13f9fe9
20
Vigesimal
6ai761
36
Base36
cgyqx
md5
9f6021e92b8bce91b05994ed0e6775cb
sha1
7cc023c436791050492fe24fab5cef3e3c15e556
sha256
19653582e2d41b7d39f7be32f962d2ef32474b4b2b4c49493836386fa908cb52
sha512
8b2964583738d8a5bb86cd4ad6c698e21073bfdaa9d652491a2cb3001886c7feb33972cbc094273dd57b1dbda1c8930c66c95ba6ad7c197ec31e8538616019b2
ripemd-160
7ea4306687608e59ca9893f9f63366a4d17d66dc
Diameter
41893842
Circumference
131613386.25785
Area
1.3784476022429E+15
Volume
3.8498977369094E+22
Surface area
5.5137904089714E+15
Circumference
131613386.25785
Perimeter
83787684
Area
438773499380241
Diagonal
29623419.768158
Surface area
2632640996281446
Volume
9.1909538284115E+21
Space diagonal
36281131.434131
Perimeter
62840763
Area
1.8999449848534E+14
Altitude
18140565.717066
Surface area
1.8999449848534E+14
Volume
1.0831642962737E+21
Height
9874473.2560526