20921747 is an odd 8-digits composite number following 20921746
and preceding 20921748 . In scientific notation, it is written as 2.0921747 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 15333120 positive integers (up to 20921747) that are relatively prime to 20921747.
20921747 has 8 divisors, whose sum is 22193856
The reverse of 20921747 is 74712902
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand seven hundred forty-seven
Scientific notation
2.0921747 × 10^7
Engineering notation
2.0921747 × 10^6
Prime Factorization
847 × 17 × 1453
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921747
Product of the distinct prime numbers
The prime factorization of 20921747 is 847 × 17 × 1453.
Since it has a total of 3 prime factors.
8 , 6 , 26 , 28 , 434 , 629 , 1054 , 1829 , 83749 , 37749 , 179747 , 424801 , 6950567 , 3911222 , 71126009 , 33580015 , 88585110 , 502863429 , 671049878 , 7377027900
n×2
41843494
n×3
62765241
n×4
83686988
n×5
104608735
n÷2
10460873.5
n÷3
6973915.6666667
n÷3
5230436.75
n÷5
4184349.4
n2
437719497532009
n3
9.1578565843318E+21
n4
1.9159835851967E+29
n5
4.0085723825639E+36
2 √n
4574.0296238656
3 √n
275.54930205945
4 √n
67.631572685142
5 √n
29.115187360479
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
-20921746
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 20921747 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921747) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110110010011
3
Ternary
1110100221020112
4
Quaternary
1033303312103
5
Quinary
20323443442
6
Senary
2024231535
8
Octal
117636623
10
Decimal
20921747
12
Duodecimal
700b5ab
16
Hexadecimal
13f3d93
20
Vigesimal
6af477
36
Base36
cgfbn
md5
027056eeab237066f6ee515052a49973
sha1
5c02621211a5613089d45525a0f3e70d71fa6959
sha256
d01bdb81035e75ddd7fff58ef5461ac50766f902bfaa929b153d6fe7e2d14801
sha512
e555bc22a1b0f447b39b06e7f525c9d384aaa932dc68c16d07fd0cbbaa633cd65e4c9448f7210c1f5f0abfbcc09beb7d17e561797df53c8f787fbcb4107901ec
ripemd-160
8719bc98be7e84c6f35f8557e8dda420870093d1
Diameter
41843494
Circumference
131455213.35093
Area
1.3751363577796E+15
Volume
3.8360339957288E+22
Surface area
5.5005454311183E+15
Circumference
131455213.35093
Perimeter
83686988
Area
437719497532009
Diagonal
29587818.355939
Surface area
2626316985192054
Volume
9.1578565843318E+21
Space diagonal
36237528.787102
Perimeter
62765241
Area
1.8953810229724E+14
Altitude
18118764.393551
Surface area
1.8953810229724E+14
Volume
1.0792637486525E+21
Height
9862606.1186462