21490837 is an odd 8-digits composite number following 21490836
and preceding 21490838 . In scientific notation, it is written as 2.1490837 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 21425580 positive integers (up to 21490837) that are relatively prime to 21490837.
21490837 has 4 divisors, whose sum is 21556096
The reverse of 21490837 is 73809412
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety thousand eight hundred thirty-seven
Scientific notation
2.1490837 × 10^7
Engineering notation
2.1490837 × 10^6
Prime Factorization
331 × 64927
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21490837
Product of the distinct prime numbers
The prime factorization of 21490837 is 331 × 64927.
Since it has a total of 2 prime factors.
9 , 4 , 2 , 77 , 581 , 731 , 5445 , 8348 , 57857 , 71669 , 722777 , 494712 , 3809600 , 7215330 , 74953561 , 74634270 , 554883073 , 909900313 , 4341419754 , 4614140742
n×2
42981674
n×3
64472511
n×4
85963348
n×5
107454185
n÷2
10745418.5
n÷3
7163612.3333333
n÷3
5372709.25
n÷5
4298167.4
n2
461856074960569
n3
9.9256736244374E+21
n4
2.1331103397798E+29
n5
4.5842326615223E+36
2 √n
4635.821070749
3 √n
278.02538025446
4 √n
68.086864157112
5 √n
29.271883366673
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
-21490836
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 21490837 can be divided by 4 positive divisors.
The sum of these divisors (counting 21490837) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110110010010101
3
Ternary
1111102211212221
4
Quaternary
1101332302111
5
Quinary
21000201322
6
Senary
2044342341
8
Octal
121766225
10
Decimal
21490837
12
Duodecimal
72449b1
16
Hexadecimal
147ec95
20
Vigesimal
6e671h
36
Base36
csmfp
md5
f784755963af83a00bd0f78f61b698ca
sha1
b6276e78bb0e5563489f8d20cc847ed80f749363
sha256
cc34b8b4f743697036e93db3b7f65dfccc079d92ea169aeb95867f4e193669fb
sha512
05a3599e6286fee6b4611e7163bc14cb67d51ce29761908d271b6aea177057f667617ce770c362ecf6ca1f7fb062af3e84c0c76c13ee53b0a254b25f43cbf3a0
ripemd-160
de78432f12646a6d97110df3732502ff965ee9fc
Diameter
42981674
Circumference
135030911.27739
Area
1.4509636521119E+15
Volume
4.157656445395E+22
Surface area
5.8038546084478E+15
Circumference
135030911.27739
Perimeter
85963348
Area
461856074960569
Diagonal
30392633.15215
Surface area
2771136449763414
Volume
9.9256736244374E+21
Space diagonal
37223221.581181
Perimeter
64472511
Area
1.9998954690401E+14
Altitude
18611610.790591
Surface area
1.9998954690401E+14
Volume
1.169751854614E+21
Height
10130877.717383