21124991 is an odd 8-digits composite number following 21124990
and preceding 21124992 . In scientific notation, it is written as 2.1124991 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20919792 positive integers (up to 21124991) that are relatively prime to 21124991.
21124991 has 4 divisors, whose sum is 21330192
The reverse of 21124991 is 19942112
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million one hundred twenty-four thousand nine hundred ninety-one
Scientific notation
2.1124991 × 10^7
Engineering notation
2.1124991 × 10^6
Prime Factorization
103 × 205097
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21124991
Product of the distinct prime numbers
The prime factorization of 21124991 is 103 × 205097.
Since it has a total of 2 prime factors.
7 , 8 , 79 , 42 , 709 , 33 , 5575 , 9838 , 37644 , 92627 , 352916 , 501386 , 3268937 , 4947466 , 1178379 , 2935740 , 501867026 , 803178797 , 9619981956 , 3263035819
n×2
42249982
n×3
63374973
n×4
84499964
n×5
105624955
n÷2
10562495.5
n÷3
7041663.6666667
n÷3
5281247.75
n÷5
4224998.2
n2
446265244750081
n3
9.4273492789583E+21
n4
1.9915266867185E+29
n5
4.2070983333188E+36
2 √n
4596.1930986415
3 √n
276.43870142637
4 √n
67.795229173162
5 √n
29.171536633077
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
-21124990
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 21124991 can be divided by 4 positive divisors.
The sum of these divisors (counting 21124991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100101011101111111
3
Ternary
1110202021001002
4
Quaternary
1100211131333
5
Quinary
20401444431
6
Senary
2032440515
8
Octal
120453577
10
Decimal
21124991
12
Duodecimal
70a913b
16
Hexadecimal
142577f
20
Vigesimal
6c0c9b
36
Base36
cks5b
md5
c4b3677b399a3b3b2ffb717bc877c59b
sha1
118c01899b843615b0075afd27442be28f8ddc32
sha256
336729ce2df460e44ca9f172e999e12a8814c428b270e432b227c96428f9d8d7
sha512
5a07ffd17fd209520d9d9c178ceb05f6b57473cd90c114bf7319365a752a2393b114d7545c51fcccf1d78dbefe16b4265a7b71cbabe59c7811ce075583acf4c0
ripemd-160
afe2413ef73d0f42ca7adb9798c48e73ade89f35
Diameter
42249982
Circumference
132732233.0655
Area
1.4019836144593E+15
Volume
3.94891883168E+22
Surface area
5.6079344578372E+15
Circumference
132732233.0655
Perimeter
84499964
Area
446265244750081
Diagonal
29875248.77721
Surface area
2677591468500486
Volume
9.4273492789583E+21
Space diagonal
36589557.721435
Perimeter
63374973
Area
1.9323851938983E+14
Altitude
18294778.860718
Surface area
1.9323851938983E+14
Volume
1.1110237672942E+21
Height
9958416.2590699