20992021 is an odd 8-digits composite number following 20992020
and preceding 20992022 . In scientific notation, it is written as 2.0992021 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20958732 positive integers (up to 20992021) that are relatively prime to 20992021.
20992021 has 4 divisors, whose sum is 21025312
The reverse of 20992021 is 12029902
Previous prime number is 643
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million nine hundred ninety-two thousand twenty-one
Scientific notation
2.0992021 × 10^7
Engineering notation
2.0992021 × 10^6
Prime Factorization
643 × 32647
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20992021
Product of the distinct prime numbers
The prime factorization of 20992021 is 643 × 32647.
Since it has a total of 2 prime factors.
5 , 1 , 62 , 83 , 920 , 477 , 8165 , 3554 , 79101 , 28919 , 794005 , 181487 , 624575 , 5689453 , 46511651 , 71264491 , 800291862 , 383433958 , 7709905780 , 3271423878
n×2
41984042
n×3
62976063
n×4
83968084
n×5
104960105
n÷2
10496010.5
n÷3
6997340.3333333
n÷3
5248005.25
n÷5
4198404.2
n2
440664945664441
n3
9.2504477933518E+21
n4
1.9418559433744E+29
n5
4.0763480742291E+36
2 √n
4581.7050319723
3 √n
275.85747121809
4 √n
67.688293167816
5 √n
29.134720119646
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
-20992020
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 20992021 can be divided by 4 positive divisors.
The sum of these divisors (counting 20992021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000101000000010101
3
Ternary
1110111111122021
4
Quaternary
1100011000111
5
Quinary
20333221041
6
Senary
2025533141
8
Octal
120050025
10
Decimal
20992021
12
Duodecimal
70441b1
16
Hexadecimal
1405015
20
Vigesimal
6b4011
36
Base36
chxjp
md5
7f1ae3c5b85187ce9a1e005cae12934d
sha1
89c8af1e7f68fd57629d2251cd5c22e8ea7fe489
sha256
3059b0a57f4c5569acc68dd4610bb02fd4f9fd66093bcde34365f51c5ef5900c
sha512
bb92789602937aaee46fbf8d69d8cd4095e02b2474f6c26a59be8d034eecc489e8e8604902e05e6fe3c90081bd0d4142c87d1dfbd4e4e4bd02c1316e68699179
ripemd-160
eb33e1947013077ac4defe21677cd6fd8fae0cb5
Diameter
41984042
Circumference
131896757.91521
Area
1.384389755994E+15
Volume
3.874818510668E+22
Surface area
5.5375590239758E+15
Circumference
131896757.91521
Perimeter
83968084
Area
440664945664441
Diagonal
29687200.799821
Surface area
2643989673986646
Volume
9.2504477933518E+21
Space diagonal
36359246.925553
Perimeter
62976063
Area
1.9081351875135E+14
Altitude
18179623.462776
Surface area
1.9081351875135E+14
Volume
1.0901757272819E+21
Height
9895733.5999403