21492513 is an odd 8-digits composite number following 21492512
and preceding 21492514 . In scientific notation, it is written as 2.1492513 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 12281328 positive integers (up to 21492513) that are relatively prime to 21492513.
21492513 has 8 divisors, whose sum is 25017960
The reverse of 21492513 is 31529412
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million four hundred ninety-two thousand five hundred thirteen
Scientific notation
2.1492513 × 10^7
Engineering notation
2.1492513 × 10^6
Prime Factorization
9 × 21 × 113717
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492513
Product of the distinct prime numbers
The prime factorization of 21492513 is 9 × 21 × 113717.
Since it has a total of 3 prime factors.
10 , 10 , 44 , 37 , 495 , 31 , 4059 , 8942 , 84516 , 13672 , 414841 , 867862 , 7947402 , 7639382 , 7127309 , 21218186 , 847776662 , 407204548 , 455809171 , 270222105
n×2
42985026
n×3
64477539
n×4
85970052
n×5
107462565
n÷2
10746256.5
n÷3
7164171
n÷3
5373128.25
n÷5
4298502.6
n2
461928115055169
n3
9.9279960178887E+21
n4
2.1337758347842E+29
n5
4.5860204868186E+36
2 √n
4636.0018334768
3 √n
278.03260749623
4 √n
68.088191586183
5 √n
29.272339916096
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
-21492512
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 21492513 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492513) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001100100001
3
Ternary
1111102221012000
4
Quaternary
1101333030201
5
Quinary
21000230023
6
Senary
2044354213
8
Octal
121771441
10
Decimal
21492513
12
Duodecimal
7245969
16
Hexadecimal
147f321
20
Vigesimal
6e6b5d
36
Base36
csnq9
md5
ae957f064b8e6a8ee25f93b3656639f9
sha1
c33b0c6b5ff08471cd7445477115ee2d51ee3bbb
sha256
8fd656ea1ff9d04e4d360f48ddf4a265ee0b14e6b9a77a275823e6b48e641c4c
sha512
bb2617c022380b52437f0cf8f6f2de3ba015ae0351a60c6039c44ebdaa22087abd9e1a3d61945fe009b4dcc7c07eef021eac18c5f74f3a8bee033a662815fe57
ripemd-160
935bdaade474c941fd66ae100468069d5bef78ce
Diameter
42985026
Circumference
135041441.89597
Area
1.4511899727439E+15
Volume
4.1586292472891E+22
Surface area
5.8047598909756E+15
Circumference
135041441.89597
Perimeter
85970052
Area
461928115055169
Diagonal
30395003.37408
Surface area
2771568690331014
Volume
9.9279960178887E+21
Space diagonal
37226124.498335
Perimeter
64477539
Area
2.0002074118002E+14
Altitude
18613062.249167
Surface area
2.0002074118002E+14
Volume
1.170025551307E+21
Height
10131667.79136