20247721 is an odd 8-digits composite number following 20247720
and preceding 20247722 . In scientific notation, it is written as 2.0247721 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 18690048 positive integers (up to 20247721) that are relatively prime to 20247721.
20247721 has 4 divisors, whose sum is 20367700
The reverse of 20247721 is 12774202
Previous prime number is 169
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred forty-seven thousand seven hundred twenty-one
Scientific notation
2.0247721 × 10^7
Engineering notation
2.0247721 × 10^6
Prime Factorization
169 × 119809
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20247721
Product of the distinct prime numbers
The prime factorization of 20247721 is 169 × 119809.
Since it has a total of 2 prime factors.
3 , 7 , 5 , 21 , 643 , 470 , 7524 , 9298 , 90811 , 60161 , 340096 , 197794 , 1691762 , 5822860 , 6575004 , 34315023 , 12070799 , 874839896 , 4284647981 , 2024298797
n×2
40495442
n×3
60743163
n×4
80990884
n×5
101238605
n÷2
10123860.5
n÷3
6749240.3333333
n÷3
5061930.25
n÷5
4049544.2
n2
409970205693841
n3
8.3009623432015E+21
n4
1.6807556955665E+29
n5
3.4031472392991E+36
2 √n
4499.7467706528
3 √n
272.55786331199
4 √n
67.080151838325
5 √n
28.925124010851
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
-20247720
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 20247721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20247721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101001111010010101001
3
Ternary
1102002200122121
4
Quaternary
1031033102221
5
Quinary
20140411341
6
Senary
2001551241
8
Octal
115172251
10
Decimal
20247721
12
Duodecimal
6945521
16
Hexadecimal
134f4a9
20
Vigesimal
66aj61
36
Base36
c1z8p
md5
f0ea13ad0265e79d82a63b96367a8181
sha1
b6b779ee5b664193dba903661428af0f1747065d
sha256
a0910cfc6201674cd87ff31d7a03e0e58a341e6796e5389761bbaf37af3c5636
sha512
966aedf292cc4c3c64e506440b1502ac9019ab239b054cbea40d127f56206d349f5eed92981644a96dd830125c0b9e8905f72c61dea10d2e2370f9bbdcbabf32
ripemd-160
ea9c3bfc5d26d573448148d2bc9689364435e568
Diameter
40495442
Circumference
127220183.09107
Area
1.2879593863985E+15
Volume
3.4770989753503E+22
Surface area
5.1518375455939E+15
Circumference
127220183.09107
Perimeter
80990884
Area
409970205693841
Diagonal
28634601.645347
Surface area
2459821234163046
Volume
8.3009623432015E+21
Space diagonal
35070081.509479
Perimeter
60743163
Area
1.775223064628E+14
Altitude
17535040.75474
Surface area
1.775223064628E+14
Volume
9.7827779387533E+20
Height
9544867.2151155