21252906 is an even 8-digits composite number following 21252905
and preceding 21252907 . In scientific notation, it is written as 2.1252906 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 6711336 positive integers (up to 21252906) that are relatively prime to 21252906.
21252906 has 16 divisors, whose sum is 37286400
The reverse of 21252906 is 60925212
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million two hundred fifty-two thousand nine hundred six
Scientific notation
2.1252906 × 10^7
Engineering notation
2.1252906 × 10^6
Prime Factorization
2 × 9 × 19 × 62143
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21252906
Product of the distinct prime numbers
The prime factorization of 21252906 is 2 × 9 × 19 × 62143.
Since it has a total of 4 prime factors.
1 , 3 , 4 , 1 , 10 , 268 , 4125 , 1231 , 35674 , 43403 , 69536 , 377270 , 8037711 , 780145 , 74520760 , 88530976 , 915359298 , 153171435 , 4133427345 , 9502600829
n×2
42505812
n×3
63758718
n×4
85011624
n×5
106264530
n÷2
10626453
n÷3
7084302
n÷3
5313226.5
n÷5
4250581.2
n2
451686013444836
n3
9.5996403852578E+21
n4
2.0402025474169E+29
n5
4.3360232961212E+36
2 √n
4610.0874178263
3 √n
276.99553833821
4 √n
67.897624537433
5 √n
29.206778986013
1 , 2 , 9 , 18 , 19 , 38 , 171 , 342 , 62143 , 124286 , 559287 , 1118574 , 1180717 , 2361434 , 10626453 , 21252906
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
-21252905
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 21252906 can be divided by 16 positive divisors.
The sum of these divisors (counting 21252906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001000100101100101010
3
Ternary
1110222202111200
4
Quaternary
1101010230222
5
Quinary
20420043111
6
Senary
2035305030
8
Octal
121045452
10
Decimal
21252906
12
Duodecimal
714b176
16
Hexadecimal
1444b2a
20
Vigesimal
6cgc56
36
Base36
cniui
md5
0e7bd3fefeb0a5ee22e070ea5363bb73
sha1
c786670e426f95df38be467bb7b18c96984d626b
sha256
5a6d02ca25a154d3d33f7d4f008757c45514b8c772b9c50df58a60e62dd85cfd
sha512
a581e2276498363130cdba29b171fb5405a368070866f75843e816648e3f6f1d7294e7bc8168ff236f103e278187deae42d4c894022a9af87745c9a1d025a000
ripemd-160
099a19ea5860625d62d98811e065bdfd91126f77
Diameter
42505812
Circumference
133535946.71407
Area
1.4190134615676E+15
Volume
4.021087961524E+22
Surface area
5.6760538462702E+15
Circumference
133535946.71407
Perimeter
85011624
Area
451686013444836
Diagonal
30056147.905041
Surface area
2710116080669016
Volume
9.5996403852578E+21
Space diagonal
36811113.000485
Perimeter
63758718
Area
1.9558578108867E+14
Altitude
18405556.500243
Surface area
1.9558578108867E+14
Volume
1.1313284688947E+21
Height
10018715.968347