21504145 is an odd 8-digits composite number following 21504144
and preceding 21504146 . In scientific notation, it is written as 2.1504145 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 15539904 positive integers (up to 21504145) that are relatively prime to 21504145.
21504145 has 8 divisors, whose sum is 22302720
The reverse of 21504145 is 54140512
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million five hundred four thousand one hundred forty-five
Scientific notation
2.1504145 × 10^7
Engineering notation
2.1504145 × 10^6
Prime Factorization
65 × 47 × 7039
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21504145
Product of the distinct prime numbers
The prime factorization of 21504145 is 65 × 47 × 7039.
Since it has a total of 3 prime factors.
6 , 6 , 100 , 96 , 308 , 728 , 9203 , 5752 , 79689 , 53167 , 154881 , 247089 , 7517854 , 7222116 , 5577985 , 62564782 , 965206680 , 731511634 , 8839797614 , 5829964182
n×2
43008290
n×3
64512435
n×4
86016580
n×5
107520725
n÷2
10752072.5
n÷3
7168048.3333333
n÷3
5376036.25
n÷5
4300829
n2
462428252181025
n3
9.9441241869973E+21
n4
2.138398884152E+29
n5
4.5984439672642E+36
2 √n
4637.2561930521
3 √n
278.0827566191
4 √n
68.097402248926
5 √n
29.275507737092
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
-21504144
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 21504145 can be divided by 8 positive divisors.
The sum of these divisors (counting 21504145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000010000010010001
3
Ternary
1111110112010211
4
Quaternary
1102002002101
5
Quinary
21001113040
6
Senary
2044524121
8
Octal
122020221
10
Decimal
21504145
12
Duodecimal
7250641
16
Hexadecimal
1482091
20
Vigesimal
6e8075
36
Base36
cswpd
md5
17269a7d09164766a9ec6444644231ec
sha1
321692d985b14aba8aacf500a0e3913c0c5ff3b2
sha256
cb1a44d1eeb5e29d9fde2acaca83df9742cf3c0306bb5f7b2fc63666680a8140
sha512
b1d9a4c8aa11a7742198e8f724bb292864f7a5d39ae44cc7dd4de7ddc66162c6e9549c335aef446595cb9eb0c7e8f7f256c65dcc8dc067a3454a5bed3fa59cfc
ripemd-160
1b6face6dbc1e4a6f4ba796873a77d2c75e5d4cd
Diameter
43008290
Circumference
135114527.90746
Area
1.4527611998643E+15
Volume
4.1653849989674E+22
Surface area
5.8110447994571E+15
Circumference
135114527.90746
Perimeter
86016580
Area
462428252181025
Diagonal
30411453.506238
Surface area
2774569513086150
Volume
9.9441241869973E+21
Space diagonal
37246271.713328
Perimeter
64512435
Area
2.002373069082E+14
Altitude
18623135.856664
Surface area
2.002373069082E+14
Volume
1.1719262742645E+21
Height
10137151.168746