21128549 is an odd 8-digits composite number following 21128548
and preceding 21128550 . In scientific notation, it is written as 2.1128549 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 19055088 positive integers (up to 21128549) that are relatively prime to 21128549.
21128549 has 16 divisors, whose sum is 23419200
The reverse of 21128549 is 94582112
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million one hundred twenty-eight thousand five hundred forty-nine
Scientific notation
2.1128549 × 10^7
Engineering notation
2.1128549 × 10^6
Prime Factorization
169 × 13 × 59 × 163
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21128549
Product of the distinct prime numbers
The prime factorization of 21128549 is 169 × 13 × 59 × 163.
Since it has a total of 4 prime factors.
1 , 9 , 14 , 85 , 420 , 674 , 9953 , 2371 , 39530 , 29403 , 8975 , 953108 , 5095641 , 280374 , 63882884 , 14533465 , 50492118 , 995026502 , 2467258581 , 4124574035
n×2
42257098
n×3
63385647
n×4
84514196
n×5
105642745
n÷2
10564274.5
n÷3
7042849.6666667
n÷3
5282137.25
n÷5
4225709.8
n2
446415582845401
n3
9.4321135165126E+21
n4
1.992868726072E+29
n5
4.210642452938E+36
2 √n
4596.5801418011
3 √n
276.45422038659
4 √n
67.798083614517
5 √n
29.172519216553
1 , 13 , 59 , 163 , 169 , 767 , 2119 , 2197 , 9617 , 9971 , 27547 , 125021 , 129623 , 358111 , 1625273 , 21128549
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
-21128548
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 21128549 can be divided by 16 positive divisors.
The sum of these divisors (counting 21128549) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100110010101100101
3
Ternary
1110202102220212
4
Quaternary
1100212111211
5
Quinary
20402103144
6
Senary
2032505205
8
Octal
120462545
10
Decimal
21128549
12
Duodecimal
70ab205
16
Hexadecimal
1426565
20
Vigesimal
6c1179
36
Base36
ckuw5
md5
bfaa95ca5840ccfacafb1a11245f657b
sha1
82f0cdf944238e91263efa0f8b7ec992abeb64c7
sha256
56c3e352afa0802e3b00b921c476245d8a5ff24db758c9d56b99355296379dd2
sha512
bfaa02dd27b19a2ba87ae0bd72699a9529e4a012bcf5175c76d4537b9e52989178047bdf6cb7097f0769e9534e484c8d58c811efd95c638e4a8c8602c3564b28
ripemd-160
c6afaa5666674e95cde3ab87ba5b4e41f487281a
Diameter
42257098
Circumference
132754588.63882
Area
1.4024559155151E+15
Volume
3.9509144708401E+22
Surface area
5.6098236620605E+15
Circumference
132754588.63882
Perimeter
84514196
Area
446415582845401
Diagonal
29880280.549064
Surface area
2678493497072406
Volume
9.4321135165126E+21
Space diagonal
36595720.358209
Perimeter
63385647
Area
1.9330361769468E+14
Altitude
18297860.179104
Surface area
1.9330361769468E+14
Volume
1.1115852380746E+21
Height
9960093.5163548