20991604 is an even 8-digits composite number following 20991603
and preceding 20991605 . In scientific notation, it is written as 2.0991604 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 10297664 positive integers (up to 20991604) that are relatively prime to 20991604.
20991604 has 12 divisors, whose sum is 37428804
The reverse of 20991604 is 40619902
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million nine hundred ninety-one thousand six hundred four
Scientific notation
2.0991604 × 10^7
Engineering notation
2.0991604 × 10^6
Prime Factorization
2 × 2 × 53 × 99017
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10495802
Product of the distinct prime numbers
The prime factorization of 20991604 is 2 × 2 × 53 × 99017.
Since it has a total of 4 prime factors.
6 , 10 , 24 , 68 , 914 , 764 , 1994 , 1900 , 5760 , 28365 , 192772 , 37150 , 8020363 , 9757280 , 11371835 , 16655946 , 558855607 , 684922811 , 1106146273 , 5121452386
n×2
41983208
n×3
62974812
n×4
83966416
n×5
104958020
n÷2
10495802
n÷3
6997201.3333333
n÷3
5247901
n÷5
4198320.8
n2
440647438492816
n3
9.2498965324556E+21
n4
1.9417016505028E+29
n5
4.0759432133501E+36
2 √n
4581.6595246701
3 √n
275.85564459823
4 √n
67.687957013564
5 √n
29.134604368286
1 , 2 , 4 , 53 , 106 , 212 , 99017 , 198034 , 396068 , 5247901 , 10495802 , 20991604
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991603
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991604 can be divided by 12 positive divisors.
The sum of these divisors (counting 20991604) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000000100111001110100
3
Ternary
1110111111001211
4
Quaternary
1100010321310
5
Quinary
20333212404
6
Senary
2025531204
8
Octal
120047164
10
Decimal
20991604
12
Duodecimal
7043b04
16
Hexadecimal
1404e74
20
Vigesimal
6b3j04
36
Base36
chx84
md5
0e1606c041424efa9535e72edb43820b
sha1
40d6a27e60773fd7781f6272eda797f26df2c482
sha256
4e70e7ef8fc743d21ad93511e8c63c86719b7a4dc48cbe556df3fef14d8ded6a
sha512
5b829f30c03cbddcc17fcae11034d9d6aee69bd40a3c73fa61fe90624d98b87c30aa15f48855ca841d0c9b0172fb21a5994972118fcffa7d963e0e2910d2f661
ripemd-160
92d6903eed8878bd42be19791f5caaff7568a356
Diameter
41983208
Circumference
131894137.82693
Area
1.3843347555922E+15
Volume
3.8745875990437E+22
Surface area
5.5373390223688E+15
Circumference
131894137.82693
Perimeter
83966416
Area
440647438492816
Diagonal
29686611.072765
Surface area
2643884630956896
Volume
9.2498965324556E+21
Space diagonal
36358524.660366
Perimeter
62974812
Area
1.9080593792366E+14
Altitude
18179262.330183
Surface area
1.9080593792366E+14
Volume
1.0901107605622E+21
Height
9895537.0242551