21642009 is an odd 8-digits composite number following 21642008
and preceding 21642010 . In scientific notation, it is written as 2.1642009 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 14395920 positive integers (up to 21642009) that are relatively prime to 21642009.
21642009 has 8 divisors, whose sum is 28920192
The reverse of 21642009 is 90024612
Previous prime number is 463
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million six hundred forty-two thousand nine
Scientific notation
2.1642009 × 10^7
Engineering notation
2.1642009 × 10^6
Prime Factorization
3 × 463 × 15581
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21642009
Product of the distinct prime numbers
The prime factorization of 21642009 is 3 × 463 × 15581.
Since it has a total of 3 prime factors.
10 , 7 , 52 , 82 , 809 , 38 , 3359 , 1932 , 54903 , 43066 , 367828 , 746894 , 4212233 , 7413682 , 41637640 , 30601675 , 3616317 , 408504129 , 6752509934 , 9387807839
n×2
43284018
n×3
64926027
n×4
86568036
n×5
108210045
n÷2
10821004.5
n÷3
7214003
n÷3
5410502.25
n÷5
4328401.8
n2
468376553556081
n3
1.013660958745E+22
n4
2.1937659592107E+29
n5
4.7477502633132E+36
2 √n
4652.0972689745
3 √n
278.67575801047
4 √n
68.206284673588
5 √n
29.31294915266
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
-21642008
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 21642009 can be divided by 8 positive divisors.
The sum of these divisors (counting 21642009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010100011101100011001
3
Ternary
1111201112020220
4
Quaternary
1102203230121
5
Quinary
21020021014
6
Senary
2051510253
8
Octal
122435431
10
Decimal
21642009
12
Duodecimal
72b8389
16
Hexadecimal
14a3b19
20
Vigesimal
6f5509
36
Base36
cvv2x
md5
5dfc4c879f2a48a7fb740d4145caf9ba
sha1
98b6f3ec3bd5710a40c0f57b47fc9cd795764394
sha256
c55a8af200a2cc2bdeae3dd495476eafbbf7e3b1622d59f8e3d0b31c393019c9
sha512
22358148acace5bd26a70dc28156b4e7c9065d7e1964e887c5bea51d63487112ed933ae2efec8ea4b5a69ad525420d3366282768b6c23d8bc5d6a9ed1353e324
ripemd-160
6597cc5e0edbec166be3fe0f460cd898a484b84a
Diameter
43284018
Circumference
135980752.96665
Area
1.4714483397655E+15
Volume
4.2460130949653E+22
Surface area
5.885793359062E+15
Circumference
135980752.96665
Perimeter
86568036
Area
468376553556081
Diagonal
30606422.644801
Surface area
2810259321336486
Volume
1.013660958745E+22
Space diagonal
37485059.165863
Perimeter
64926027
Area
2.0281299695828E+14
Altitude
18742529.582931
Surface area
2.0281299695828E+14
Volume
1.1946108962544E+21
Height
10202140.8816