21073721 is an odd 8-digits prime number following 21073720
and preceding 21073722 . In scientific notation, it is written as 2.1073721 × 10^7.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 21073720 positive integers (up to 21073721) that are relatively prime to 21073721.
21073721 has 2 divisors, whose sum is 21073722
The reverse of 21073721 is 12737012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million seventy-three thousand seven hundred twenty-one
Scientific notation
2.1073721 × 10^7
Engineering notation
2.1073721 × 10^6
Prime Factorization
21073721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21073721
Product of the distinct prime numbers
The prime factorization of 21073721 is 21073721.
Since it has a total of 1 prime factors.
2 , 6 , 65 , 85 , 595 , 751 , 545 , 7187 , 2458 , 15882 , 468418 , 797479 , 8978888 , 3233459 , 86417265 , 30365303 , 941080582 , 554154474 , 1950518127 , 4953374097
n×2
42147442
n×3
63221163
n×4
84294884
n×5
105368605
n÷2
10536860.5
n÷3
7024573.6666667
n÷3
5268430.25
n÷5
4214744.2
n2
444101716785841
n3
9.3588756751658E+21
n4
1.9722633485213E+29
n5
4.1562927545264E+36
2 √n
4590.6122685324
3 √n
276.21488289164
4 √n
67.754057210859
5 √n
29.157363100472
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21073722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10536861
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4590.6123774503
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999050951
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21073721 can be divided by 2 positive divisors.
The sum of these divisors (counting 21073721) is 21073722, the average is 10536861.
Base
System
Value
2
Binary
1010000011000111100111001
3
Ternary
1110122122201012
4
Quaternary
1100120330321
5
Quinary
20343324341
6
Senary
2031403305
8
Octal
120307471
10
Decimal
21073721
12
Duodecimal
7083535
16
Hexadecimal
1418f39
20
Vigesimal
6be461
36
Base36
cjol5
md5
0f2759b5bc58fa5a4c32b7dca186f47e
sha1
5d91dab6de585055773ce814774beef932e3dfbe
sha256
1dd1c350209492ed0a8c4ceaf1109d67b3ea395709925770300d0a667b6b2837
sha512
d1fc7764feee5b151a922fa26f597f6590b0d7b2f3b4169e820c96097ff67aa0fb14c226d12ff857e85092b3e9b415d0a3cc45c0000b5523c02581c172e3e8e7
ripemd-160
0200d360a45e89bc0208d1d6f6af757c150afdd3
Diameter
42147442
Circumference
132410094.1548
Area
1.395186690901E+15
Volume
3.9202366755948E+22
Surface area
5.5807467636041E+15
Circumference
132410094.1548
Perimeter
84294884
Area
444101716785841
Diagonal
29802742.047867
Surface area
2664610300715046
Volume
9.3588756751658E+21
Space diagonal
36500755.476531
Perimeter
63221163
Area
1.9230168430041E+14
Altitude
18250377.738266
Surface area
1.9230168430041E+14
Volume
1.1029540756986E+21
Height
9934247.3492889