21491050 is an even 8-digits composite number following 21491049
and preceding 21491051 . In scientific notation, it is written as 2.1491050 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 7368240 positive integers (up to 21491050) that are relatively prime to 21491050.
21491050 has 16 divisors, whose sum is 38316096
The reverse of 21491050 is 05019412
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million four hundred ninety-one thousand fifty
Scientific notation
2.1491050 × 10^7
Engineering notation
2.1491050 × 10^6
Prime Factorization
2 × 25 × 7 × 61403
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21491050
Product of the distinct prime numbers
The prime factorization of 21491050 is 2 × 25 × 7 × 61403.
Since it has a total of 4 prime factors.
1 , 6 , 1 , 13 , 192 , 997 , 545 , 7625 , 50944 , 17804 , 592773 , 427463 , 2971533 , 3633937 , 13085380 , 38481228 , 649130159 , 715601700 , 1596451844 , 3797955811
n×2
42982100
n×3
64473150
n×4
85964200
n×5
107455250
n÷2
10745525
n÷3
7163683.3333333
n÷3
5372762.5
n÷5
4298210
n2
461865230102500
n3
9.9259687533943E+21
n4
2.1331949077764E+29
n5
4.5844598422767E+36
2 √n
4635.8440439687
3 √n
278.02629877321
4 √n
68.087032862129
5 √n
29.271941390345
1 , 2 , 7 , 14 , 25 , 50 , 175 , 350 , 61403 , 122806 , 429821 , 859642 , 1535075 , 3070150 , 10745525 , 21491050
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491049
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491050 can be divided by 16 positive divisors.
The sum of these divisors (counting 21491050) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111110110101101010
3
Ternary
1111102212011211
4
Quaternary
1101332311222
5
Quinary
21000203200
6
Senary
2044343334
8
Octal
121766552
10
Decimal
21491050
12
Duodecimal
7244b4a
16
Hexadecimal
147ed6a
20
Vigesimal
6e67ca
36
Base36
csmlm
md5
1f974f0a76d6adde4c445408a3bbf749
sha1
682217a194d12099fa9e673dab6fc87a639ecaec
sha256
7142003cc2ad2c9b6ffd52da8114512f6ed5540aeed08fb4b667884768a4b99a
sha512
0f34e26794b4c718caeb5134bd68d345e8c77b3c692122ff12679c1cee0d23f44adb89bc60f55ada45423d48dfe2c5ad7f725f0595db1586f69c58099ff86ae5
ripemd-160
c927866a5af49ff4980a40a277a587a24f75b60b
Diameter
42982100
Circumference
135032249.59586
Area
1.4509924138386E+15
Volume
4.1577800687234E+22
Surface area
5.8039696553543E+15
Circumference
135032249.59586
Perimeter
85964200
Area
461865230102500
Diagonal
30392934.379638
Surface area
2771191380615000
Volume
9.9259687533943E+21
Space diagonal
37223590.508003
Perimeter
64473150
Area
1.9999351119676E+14
Altitude
18611795.254002
Surface area
1.9999351119676E+14
Volume
1.1697866358952E+21
Height
10130978.126546