20211621 is an odd 8-digits composite number following 20211620
and preceding 20211622 . In scientific notation, it is written as 2.0211621 × 10^7.
The sum of its digits is 15. It has a total of 2 prime factors and 4 positive divisors.
There are 13474412 positive integers (up to 20211621) that are relatively prime to 20211621.
20211621 has 4 divisors, whose sum is 26948832
The reverse of 20211621 is 12611202
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million two hundred eleven thousand six hundred twenty-one
Scientific notation
2.0211621 × 10^7
Engineering notation
2.0211621 × 10^6
Prime Factorization
3 × 6737207
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20211621
Product of the distinct prime numbers
The prime factorization of 20211621 is 3 × 6737207.
Since it has a total of 2 prime factors.
5 , 6 , 8 , 15 , 376 , 120 , 7410 , 4502 , 77928 , 61970 , 976984 , 176619 , 879856 , 4291431 , 56141457 , 99985917 , 830832145 , 907354462 , 1306274312 , 8024905499
n×2
40423242
n×3
60634863
n×4
80846484
n×5
101058105
n÷2
10105810.5
n÷3
6737207
n÷3
5052905.25
n÷5
4042324.2
n2
408509623447641
n3
8.2566416839764E+21
n4
1.6688011244933E+29
n5
3.3729175852633E+36
2 √n
4495.7336442454
3 √n
272.39578429351
4 √n
67.050232246021
5 √n
28.91480242986
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
-20211620
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 20211621 can be divided by 4 positive divisors.
The sum of these divisors (counting 20211621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000110011110100101
3
Ternary
1102000212010120
4
Quaternary
1031012132211
5
Quinary
20133232441
6
Senary
2001112153
8
Octal
115063645
10
Decimal
20211621
12
Duodecimal
6928659
16
Hexadecimal
13467a5
20
Vigesimal
666911
36
Base36
c17dx
md5
f80aa27fd38cd808b221c7a17ba757ac
sha1
799b81fed88e0447c70ba6435d3681e87696b393
sha256
36dbb56adc94efdaf00608e8c9bce61575038ec707ffb4aea481e0edda2679cb
sha512
8cf1a52821e884fc39d8d9b5e48d2d00eb87cb332c3c4af3ff692051f2c588a6780a435122d6a94ed035c756fc029bc7f63f9677ca119bc1c79129d58a43054f
ripemd-160
6b12f8882347c750b0c84cc27b5b05408d906769
Diameter
40423242
Circumference
126993360.10148
Area
1.2833708319438E+15
Volume
3.4585339810271E+22
Surface area
5.1334833277754E+15
Circumference
126993360.10148
Perimeter
80846484
Area
408509623447641
Diagonal
28583548.535745
Surface area
2451057740685846
Volume
8.2566416839764E+21
Space diagonal
35007554.475326
Perimeter
60634863
Area
1.7688985579804E+14
Altitude
17503777.237663
Surface area
1.7688985579804E+14
Volume
9.7305455409454E+20
Height
9527849.511915