21492869 is an odd 8-digits composite number following 21492868
and preceding 21492870 . In scientific notation, it is written as 2.1492869 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 21463500 positive integers (up to 21492869) that are relatively prime to 21492869.
21492869 has 4 divisors, whose sum is 21522240
The reverse of 21492869 is 96829412
Previous prime number is 751
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million four hundred ninety-two thousand eight hundred sixty-nine
Scientific notation
2.1492869 × 10^7
Engineering notation
2.1492869 × 10^6
Prime Factorization
751 × 28619
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21492869
Product of the distinct prime numbers
The prime factorization of 21492869 is 751 × 28619.
Since it has a total of 2 prime factors.
10 , 10 , 53 , 38 , 578 , 238 , 8744 , 3105 , 59020 , 41172 , 579193 , 646225 , 8011466 , 1980808 , 33593556 , 28544121 , 620563219 , 272813780 , 6859312405 , 4939646766
n×2
42985738
n×3
64478607
n×4
85971476
n×5
107464345
n÷2
10746434.5
n÷3
7164289.6666667
n÷3
5373217.25
n÷5
4298573.8
n2
461943417851161
n3
9.9284893652873E+21
n4
2.1339172129601E+29
n5
4.5864003114997E+36
2 √n
4636.0402284708
3 √n
278.0341425899
4 √n
68.088473536061
5 √n
29.272436888321
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
-21492868
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 21492869 can be divided by 4 positive divisors.
The sum of these divisors (counting 21492869) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111010010000101
3
Ternary
1111102221200012
4
Quaternary
1101333102011
5
Quinary
21000232434
6
Senary
2044400005
8
Octal
121772205
10
Decimal
21492869
12
Duodecimal
7246005
16
Hexadecimal
147f485
20
Vigesimal
6e6c39
36
Base36
cso05
md5
ee4543facfd4e998d31f076163483539
sha1
c78658a3330a39d6497267282d572ece28a5a961
sha256
03072e35eaef65264ed62405c6a1ad0f92f3b03724e6d3002528f7ed28bb6942
sha512
85e39e14e8e86a2f7282bc3fca254d26b00f4af87512ca118df018754ce9e4d0a2bab1e33e9cc8e0d88589c9566aeefd729385506fbd701e5cda240aedfa9919
ripemd-160
5e818e6f6021de15e1b00e1e6482ee2902be77e7
Diameter
42985738
Circumference
135043678.70994
Area
1.4512380478954E+15
Volume
4.1588359001641E+22
Surface area
5.8049521915815E+15
Circumference
135043678.70994
Perimeter
85971476
Area
461943417851161
Diagonal
30395506.834108
Surface area
2771660507106966
Volume
9.9284893652873E+21
Space diagonal
37226741.108422
Perimeter
64478607
Area
2.0002736748506E+14
Altitude
18613370.554211
Surface area
2.0002736748506E+14
Volume
1.1700836928555E+21
Height
10131835.611369