21053989 is an odd 8-digits composite number following 21053988
and preceding 21053990 . In scientific notation, it is written as 2.1053989 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 19139980 positive integers (up to 21053989) that are relatively prime to 21053989.
21053989 has 4 divisors, whose sum is 22968000
The reverse of 21053989 is 98935012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million fifty-three thousand nine hundred eighty-nine
Scientific notation
2.1053989 × 10^7
Engineering notation
2.1053989 × 10^6
Prime Factorization
11 × 1913999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21053989
Product of the distinct prime numbers
The prime factorization of 21053989 is 11 × 1913999.
Since it has a total of 2 prime factors.
1 , 9 , 46 , 100 , 374 , 624 , 3328 , 7577 , 65243 , 94436 , 803652 , 17921 , 2974886 , 980573 , 57930455 , 25299153 , 340589686 , 130084137 , 7820494700 , 6174587280
n×2
42107978
n×3
63161967
n×4
84215956
n×5
105269945
n÷2
10526994.5
n÷3
7017996.3333333
n÷3
5263497.25
n÷5
4210797.8
n2
443270452812121
n3
9.3326112375314E+21
n4
1.9648869433626E+29
n5
4.13687080918E+36
2 √n
4588.4625965567
3 √n
276.12864635653
4 √n
67.738191565443
5 √n
29.151900859694
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
-21053988
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 21053989 can be divided by 4 positive divisors.
The sum of these divisors (counting 21053989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010100001000100101
3
Ternary
1110121122122101
4
Quaternary
1100110020211
5
Quinary
20342211424
6
Senary
2031132101
8
Octal
120241045
10
Decimal
21053989
12
Duodecimal
7074031
16
Hexadecimal
1414225
20
Vigesimal
6bbej9
36
Base36
cj9d1
md5
08481a9b3e7b61fe0883326221d4a434
sha1
ef29aa8da9215a5fdba9cf9c26a9a867281f0c88
sha256
c0ab767c0e95eb2a774a67a18da33b45a00771cced4934fd7277508713dc5ca9
sha512
c3a6102db5c03d681688c11f9ea326225fa4266d3439bcf56d76e3124c016a26cbb43ccffe248974ee31be1cfbeb8052868936012b04505c5e7eeabefbcfb384
ripemd-160
9e96e1fd11206709a5d9ddca29b10ab56b512752
Diameter
42107978
Circumference
132286114.34232
Area
1.392575198108E+15
Volume
3.9092350536851E+22
Surface area
5.5703007924319E+15
Circumference
132286114.34232
Perimeter
84215956
Area
443270452812121
Diagonal
29774836.785854
Surface area
2659622716872726
Volume
9.3326112375314E+21
Space diagonal
36466578.649996
Perimeter
63161967
Area
1.9194173644116E+14
Altitude
18233289.324998
Surface area
1.9194173644116E+14
Volume
1.0998587820394E+21
Height
9924945.5952847