21082913 is an odd 8-digits composite number following 21082912
and preceding 21082914 . In scientific notation, it is written as 2.1082913 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 19010880 positive integers (up to 21082913) that are relatively prime to 21082913.
21082913 has 16 divisors, whose sum is 23284800
The reverse of 21082913 is 31928012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million eighty-two thousand nine hundred thirteen
Scientific notation
2.1082913 × 10^7
Engineering notation
2.1082913 × 10^6
Prime Factorization
83 × 29 × 19 × 461
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21082913
Product of the distinct prime numbers
The prime factorization of 21082913 is 83 × 29 × 19 × 461.
Since it has a total of 4 prime factors.
8 , 7 , 7 , 52 , 634 , 422 , 9292 , 4689 , 44216 , 6586 , 391486 , 644614 , 6252404 , 6470644 , 52744905 , 99355547 , 348195296 , 923524222 , 1581067825 , 6106434151
n×2
42165826
n×3
63248739
n×4
84331652
n×5
105414565
n÷2
10541456.5
n÷3
7027637.6666667
n÷3
5270728.25
n÷5
4216582.6
n2
444489220565569
n3
9.3711275666217E+21
n4
1.9757066719899E+29
n5
4.1653651879082E+36
2 √n
4591.6133330236
3 √n
276.2550371378
4 √n
67.761444295584
5 √n
29.159906246341
1 , 19 , 29 , 83 , 461 , 551 , 1577 , 2407 , 8759 , 13369 , 38263 , 45733 , 254011 , 726997 , 1109627 , 21082913
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
-21082912
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 21082913 can be divided by 16 positive divisors.
The sum of these divisors (counting 21082913) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011011001100100001
3
Ternary
1110200010022122
4
Quaternary
1100123030201
5
Quinary
20344123123
6
Senary
2031514025
8
Octal
120331441
10
Decimal
21082913
12
Duodecimal
7088915
16
Hexadecimal
141b321
20
Vigesimal
6bf75d
36
Base36
cjvoh
md5
2dcb69b801a2e9203e0634a1d8aa8268
sha1
962e4190283cffc85468ce5564d6ec03ad49ef23
sha256
6aecf41c77ccd08199dc4f1322038735aefab7458a930508faecc9b4b79607bd
sha512
cec02f78446d64371a4c61efd6f7fc98982b69a439764cf1b26196c167cfe2ff3ce0d6c60b04d638bc84611e81658ed483f96340f05e53e6701e9936fcd13b31
ripemd-160
74c404a6d8a6e3ed34fdef3f08597dd4445cc8e0
Diameter
42165826
Circumference
132467849.19415
Area
1.3964040699286E+15
Volume
3.9253687358869E+22
Surface area
5.5856162797146E+15
Circumference
132467849.19415
Perimeter
84331652
Area
444489220565569
Diagonal
29815741.498932
Surface area
2666935323393414
Volume
9.3711275666217E+21
Space diagonal
36516676.487554
Perimeter
63248739
Area
1.9246947835906E+14
Altitude
18258338.243777
Surface area
1.9246947835906E+14
Volume
1.1043979749537E+21
Height
9938580.499644