21490139 is an odd 8-digits composite number following 21490138
and preceding 21490140 . In scientific notation, it is written as 2.1490139 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 18933600 positive integers (up to 21490139) that are relatively prime to 21490139.
21490139 has 16 divisors, whose sum is 24178176
The reverse of 21490139 is 93109412
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred ninety thousand one hundred thirty-nine
Scientific notation
2.1490139 × 10^7
Engineering notation
2.1490139 × 10^6
Prime Factorization
11 × 47 × 197 × 211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21490139
Product of the distinct prime numbers
The prime factorization of 21490139 is 11 × 47 × 197 × 211.
Since it has a total of 4 prime factors.
10 , 2 , 67 , 8 , 783 , 523 , 9688 , 8413 , 88823 , 19669 , 389915 , 195995 , 5109575 , 3417173 , 30103883 , 59240252 , 126933286 , 58039 , 1657550699 , 9518267314
n×2
42980278
n×3
64470417
n×4
85960556
n×5
107450695
n÷2
10745069.5
n÷3
7163379.6666667
n÷3
5372534.75
n÷5
4298027.8
n2
461826074239321
n3
9.9247065292273E+21
n4
2.132833228473E+29
n5
4.5834882543704E+36
2 √n
4635.7457868179
3 √n
278.02237023029
4 √n
68.086311302771
5 √n
29.271693220146
1 , 11 , 47 , 197 , 211 , 517 , 2167 , 2321 , 9259 , 9917 , 41567 , 101849 , 109087 , 457237 , 1953649 , 21490139
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
-21490138
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 21490139 can be divided by 16 positive divisors.
The sum of these divisors (counting 21490139) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111110100111011011
3
Ternary
1111102210221002
4
Quaternary
1101332213123
5
Quinary
21000141024
6
Senary
2044335215
8
Octal
121764733
10
Decimal
21490139
12
Duodecimal
724450b
16
Hexadecimal
147e9db
20
Vigesimal
6e656j
36
Base36
cslwb
md5
33e5f2fac027e6261344fa303526db2a
sha1
5b2f307327112faab7ed23cd3baf9d4fb0ef8a05
sha256
62ae4941182d845b37bc9540e660bd78b3d956a9cdcb554f3ec98eed2dd5cafb
sha512
9e6a5d7567570197cb9b810fa00c1cf7145bf9f2e2c87cd10166d9f283c17f9e64cc0dacadeb65dc7ce18f06bfaeaa3ca7471048c7bf9976dea5b08255dfd169
ripemd-160
1aa634e22e29de070f2b9addfdcfabc8a85c851d
Diameter
42980278
Circumference
135026525.61405
Area
1.4508694020665E+15
Volume
4.1572513495007E+22
Surface area
5.8034776082659E+15
Circumference
135026525.61405
Perimeter
85960556
Area
461826074239321
Diagonal
30391646.031083
Surface area
2770956445435926
Volume
9.9247065292273E+21
Space diagonal
37222012.609717
Perimeter
64470417
Area
1.9997655621065E+14
Altitude
18611006.304859
Surface area
1.9997655621065E+14
Volume
1.1696378813505E+21
Height
10130548.677028