21252015 is an odd 8-digits composite number following 21252014
and preceding 21252016 . In scientific notation, it is written as 2.1252015 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 11293440 positive integers (up to 21252015) that are relatively prime to 21252015.
21252015 has 24 divisors, whose sum is 36970128
The reverse of 21252015 is 51025212
Previous prime number is 1361
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million two hundred fifty-two thousand fifteen
Scientific notation
2.1252015 × 10^7
Engineering notation
2.1252015 × 10^6
Prime Factorization
3 × 3 × 5 × 1361 × 347
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
7084005
Product of the distinct prime numbers
The prime factorization of 21252015 is 3 × 3 × 5 × 1361 × 347.
Since it has a total of 5 prime factors.
5 , 2 , 43 , 75 , 399 , 483 , 2360 , 1769 , 15217 , 54940 , 595833 , 331241 , 4637146 , 2155347 , 42324598 , 64427336 , 676098263 , 89827633 , 2761821569 , 4364356639
n×2
42504030
n×3
63756045
n×4
85008060
n×5
106260075
n÷2
10626007.5
n÷3
7084005
n÷3
5313003.75
n÷5
4250403
n2
451648141560225
n3
9.59843307916E+21
n4
2.0398604377481E+29
n5
4.3351144620928E+36
2 √n
4609.9907809018
3 √n
276.99166739348
4 √n
67.896912896698
5 √n
29.206534090784
1 , 3 , 5 , 9 , 15 , 45 , 347 , 1041 , 1361 , 1735 , 3123 , 4083 , 5205 , 6805 , 12249 , 15615 , 20415 , 61245 , 472267 , 1416801 , 2361335 , 4250403 , 7084005 , 21252015
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21252014
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21252015 can be divided by 24 positive divisors.
The sum of these divisors (counting 21252015) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010001000100011110101111
3
Ternary
1110222201021200
4
Quaternary
1101010132233
5
Quinary
20420031030
6
Senary
2035300543
8
Octal
121043657
10
Decimal
21252015
12
Duodecimal
714a753
16
Hexadecimal
14447af
20
Vigesimal
6cga0f
36
Base36
cni5r
md5
96e4b644d1f201b96533b7ac5f27619d
sha1
5abb326a547ba46af5fd63c401a2b99cacffec35
sha256
3b6e752fe8f7b3cba3f8500ecd656493b4513cfb36aee11daa316502564ae874
sha512
08055bac902f265d51f9c807551a22a9e2f83f3b5fca57c6368188f048b71ffbf06624fc00ca130386dbdd642350b01fc6d3ee90534e9ff0278b48ff2147a6f8
ripemd-160
4ba05e9099a3ce79e56709b963f75ff0ba963557
Diameter
42504030
Circumference
133530348.39596
Area
1.4188944835331E+15
Volume
4.0205822463283E+22
Surface area
5.6755779341323E+15
Circumference
133530348.39596
Perimeter
85008060
Area
451648141560225
Diagonal
30054887.840756
Surface area
2709888849361350
Volume
9.59843307916E+21
Space diagonal
36809569.743216
Perimeter
63756045
Area
1.9556938208159E+14
Altitude
18404784.871608
Surface area
1.9556938208159E+14
Volume
1.1311861865066E+21
Height
10018295.946919