20990783 is an odd 8-digits composite number following 20990782
and preceding 20990784 . In scientific notation, it is written as 2.0990783 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 18784560 positive integers (up to 20990783) that are relatively prime to 20990783.
20990783 has 6 divisors, whose sum is 21253704
The reverse of 20990783 is 38709902
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million nine hundred ninety thousand seven hundred eighty-three
Scientific notation
2.0990783 × 10^7
Engineering notation
2.0990783 × 10^6
Prime Factorization
3047 × 83 × 83
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
252901
Product of the distinct prime numbers
The prime factorization of 20990783 is 3047 × 83 × 83.
Since it has a total of 3 prime factors.
2 , 10 , 85 , 93 , 751 , 92 , 5502 , 6546 , 29998 , 45581 , 821365 , 974642 , 5674782 , 3972632 , 40275213 , 71525082 , 865590441 , 388131529 , 9097004145 , 810846021
n×2
41981566
n×3
62972349
n×4
83963132
n×5
104953915
n÷2
10495391.5
n÷3
6996927.6666667
n÷3
5247695.75
n÷5
4198156.6
n2
440612970953089
n3
9.2488112602616E+21
n4
1.9413979017211E+29
n5
4.0751462071682E+36
2 √n
4581.5699274375
3 √n
275.8520482328
4 √n
67.68729517005
5 √n
29.134376468747
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20990782
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20990783 can be divided by 6 positive divisors.
The sum of these divisors (counting 20990783) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000000100101100111111
3
Ternary
1110111102221102
4
Quaternary
1100010230333
5
Quinary
20333201113
6
Senary
2025523315
8
Octal
120045477
10
Decimal
20990783
12
Duodecimal
704353b
16
Hexadecimal
1404b3f
20
Vigesimal
6b3gj3
36
Base36
chwlb
md5
db9f506d04486cd495ea3a39d8105f05
sha1
f795ecaeddda034b4c7ca833534187a0248498e4
sha256
bc6231512d026bcaf854ac2ae31075540765807ad6987729bf9f7c7cb20db20d
sha512
484ab59e5fd74c12d824a94400f2f85c4f7ece048d171c5f6a7540314cd963e1437c68ccc195bdf99715d60214c1a6097851793c1d03de2769c98f0b07f90af2
ripemd-160
897b3966a5f56d49d658d6f6219ac38e2e2b9f2d
Diameter
41981566
Circumference
131888979.3318
Area
1.3842264726226E+15
Volume
3.8741330012902E+22
Surface area
5.5369058904904E+15
Circumference
131888979.3318
Perimeter
83963132
Area
440612970953089
Diagonal
29685450.003431
Surface area
2643677825718534
Volume
9.2488112602616E+21
Space diagonal
36357102.646653
Perimeter
62972349
Area
1.9079101304116E+14
Altitude
18178551.323327
Surface area
1.9079101304116E+14
Volume
1.0899828600076E+21
Height
9895150.0011435