20985992 is an even 8-digits composite number following 20985991
and preceding 20985993 . In scientific notation, it is written as 2.0985992 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 8 positive divisors.
There are 10492992 positive integers (up to 20985992) that are relatively prime to 20985992.
20985992 has 8 divisors, whose sum is 39348750
The reverse of 20985992 is 29958902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million nine hundred eighty-five thousand nine hundred ninety-two
Scientific notation
2.0985992 × 10^7
Engineering notation
2.0985992 × 10^6
Prime Factorization
2 × 2 × 2 × 2623249
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5246498
Product of the distinct prime numbers
The prime factorization of 20985992 is 2 × 2 × 2 × 2623249.
Since it has a total of 4 prime factors.
7 , 6 , 32 , 88 , 827 , 133 , 9160 , 8748 , 15401 , 7544 , 454726 , 562232 , 4346765 , 3223197 , 83076591 , 23097262 , 871819966 , 867782751 , 5667966796 , 3190065576
n×2
41971984
n×3
62957976
n×4
83943968
n×5
104929960
n÷2
10492996
n÷3
6995330.6666667
n÷3
5246498
n÷5
4197198.4
n2
440411860224064
n3
9.2424797753673E+21
n4
1.9396260662602E+29
n5
4.0704977109528E+36
2 √n
4581.047041889
3 √n
275.83105953306
4 √n
67.683432551024
5 √n
29.133046403614
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
-20985991
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 20985992 can be divided by 8 positive divisors.
The sum of these divisors (counting 20985992) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000011100010001000
3
Ternary
1110111012100222
4
Quaternary
1100003202020
5
Quinary
20333022432
6
Senary
2025445212
8
Octal
120034210
10
Decimal
20985992
12
Duodecimal
7040808
16
Hexadecimal
1403888
20
Vigesimal
6b34jc
36
Base36
chsw8
md5
a7008b83568ad9053b06754150241eae
sha1
222e74815aee4ec72e73a76e04ae4aa6bd149bf1
sha256
2abbe958884197b2fee4a8c15d7e160f15f1de801d52607371ff92231ac2726e
sha512
31617b16482d8eb64d27e2633328b73ff9d3e39a35d77d2f937a57c3b0ae05adf502895dec9b06eac82f7b6b5e6045199b2577ae54ead5269ef9eea4df440586
ripemd-160
5ceb3d635d00ea094f66837d58bf11d3652bec22
Diameter
41971984
Circumference
131858876.59099
Area
1.3835946646337E+15
Volume
3.8714808750995E+22
Surface area
5.5343786585349E+15
Circumference
131858876.59099
Perimeter
83943968
Area
440411860224064
Diagonal
29678674.506253
Surface area
2642471161344384
Volume
9.2424797753673E+21
Space diagonal
36348804.391234
Perimeter
62957976
Area
1.90703929541E+14
Altitude
18174402.195617
Surface area
1.90703929541E+14
Volume
1.089236687357E+21
Height
9892891.5020844