21491146 is an even 8-digits composite number following 21491145
and preceding 21491147 . In scientific notation, it is written as 2.1491146 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 10375008 positive integers (up to 21491146) that are relatively prime to 21491146.
21491146 has 8 divisors, whose sum is 33348420
The reverse of 21491146 is 64119412
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred ninety-one thousand one hundred forty-six
Scientific notation
2.1491146 × 10^7
Engineering notation
2.1491146 × 10^6
Prime Factorization
2 × 29 × 370537
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491146
Product of the distinct prime numbers
The prime factorization of 21491146 is 2 × 29 × 370537.
Since it has a total of 3 prime factors.
3 , 9 , 86 , 96 , 636 , 251 , 5182 , 6055 , 86551 , 21 , 523198 , 368355 , 8046399 , 9429032 , 88999675 , 17133508 , 780889862 , 326751423 , 511633595 , 4641181954
n×2
42982292
n×3
64473438
n×4
85964584
n×5
107455730
n÷2
10745573
n÷3
7163715.3333333
n÷3
5372786.5
n÷5
4298229.2
n2
461869356393316
n3
9.9261017711748E+21
n4
2.1332330237518E+29
n5
4.5845622365471E+36
2 √n
4635.8543980587
3 √n
278.02671275151
4 √n
68.087108897784
5 √n
29.271967541709
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491145
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491146 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491146) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110110111001010
3
Ternary
1111102212022101
4
Quaternary
1101332313022
5
Quinary
21000204041
6
Senary
2044344014
8
Octal
121766712
10
Decimal
21491146
12
Duodecimal
724500a
16
Hexadecimal
147edca
20
Vigesimal
6e67h6
36
Base36
csmoa
md5
b1cbbcefa64c75732e5204eacb6607f6
sha1
e3d9926dc4875a9e108ea83cbca53e55ecd47c1e
sha256
c668d024a5cf83d1fee28521483d23d5786cb28fb42fdc707d5956863e431d68
sha512
b81520c593125f6df47e48625717a9a0ea192e16bfd6c49b0302a4d40095586c6e6f47ce84327bbc113ae7679519875d7a1e4da41f73e6f9a6d3e880831af7b2
ripemd-160
0c962056604c7aa068c52693cfb1c6cbbd512abb
Diameter
42982292
Circumference
135032852.78165
Area
1.4510053769635E+15
Volume
4.157835787081E+22
Surface area
5.804021507854E+15
Circumference
135032852.78165
Perimeter
85964584
Area
461869356393316
Diagonal
30393070.14414
Surface area
2771216138359896
Volume
9.9261017711748E+21
Space diagonal
37223756.784881
Perimeter
64473438
Area
1.9999529793309E+14
Altitude
18611878.39244
Surface area
1.9999529793309E+14
Volume
1.1698023121909E+21
Height
10131023.38138