21052972 is an even 8-digits composite number following 21052971
and preceding 21052973 . In scientific notation, it is written as 2.1052972 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 10281600 positive integers (up to 21052972) that are relatively prime to 21052972.
21052972 has 12 divisors, whose sum is 37699816
The reverse of 21052972 is 27925012
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million fifty-two thousand nine hundred seventy-two
Scientific notation
2.1052972 × 10^7
Engineering notation
2.1052972 × 10^6
Prime Factorization
2 × 2 × 43 × 122401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10526486
Product of the distinct prime numbers
The prime factorization of 21052972 is 2 × 2 × 43 × 122401.
Since it has a total of 4 prime factors.
6 , 7 , 91 , 89 , 832 , 284 , 1883 , 1871 , 16980 , 12667 , 142496 , 741088 , 2274599 , 2976999 , 59700591 , 40503614 , 612051550 , 216244467 , 3270002391 , 3393576556
n×2
42105944
n×3
63158916
n×4
84211888
n×5
105264860
n÷2
10526486
n÷3
7017657.3333333
n÷3
5263243
n÷5
4210594.4
n2
443227630032784
n3
9.3312588847066E+21
n4
1.9645073202448E+29
n5
4.1358717606908E+36
2 √n
4588.3517737854
3 √n
276.12420021009
4 √n
67.737373537697
5 √n
29.151619221321
1 , 2 , 4 , 43 , 86 , 172 , 122401 , 244802 , 489604 , 5263243 , 10526486 , 21052972
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21052971
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21052972 can be divided by 12 positive divisors.
The sum of these divisors (counting 21052972) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000010011111000101100
3
Ternary
1110121121020201
4
Quaternary
1100103320230
5
Quinary
20342143342
6
Senary
2031123244
8
Octal
120237054
10
Decimal
21052972
12
Duodecimal
7073524
16
Hexadecimal
1413e2c
20
Vigesimal
6bbc8c
36
Base36
cj8ks
md5
c45044c921d8f9f8992fd0fd0032a55d
sha1
6ecfa22d3c4b35f538afbaf5c8957698f73ceb7f
sha256
e3f593f5099476dba8879d43837995a276c476eaa6439054116badd265aa95e5
sha512
d2cf227f9d0cd8f21792e055f6740de6acc3627fc118bd2db177b84504d71ae6dfd6094dbdb8644bae6f07f2d91813a3057a35f1d3dca56efba085279dc59072
ripemd-160
e18e4debbdc2fd1c9f34811f7da6b15a922a5b56
Diameter
42105944
Circumference
132279724.34286
Area
1.392440666379E+15
Volume
3.9086685814585E+22
Surface area
5.569762665516E+15
Circumference
132279724.34286
Perimeter
84211888
Area
443227630032784
Diagonal
29773398.530661
Surface area
2659365780196704
Volume
9.3312588847066E+21
Space diagonal
36464817.154325
Perimeter
63158916
Area
1.9192319363378E+14
Altitude
18232408.577162
Surface area
1.9192319363378E+14
Volume
1.0996994057305E+21
Height
9924466.176887