21497769 is an odd 8-digits composite number following 21497768
and preceding 21497770 . In scientific notation, it is written as 2.1497769 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 14331840 positive integers (up to 21497769) that are relatively prime to 21497769.
21497769 has 4 divisors, whose sum is 23886420
The reverse of 21497769 is 96779412
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million four hundred ninety-seven thousand seven hundred sixty-nine
Scientific notation
2.1497769 × 10^7
Engineering notation
2.1497769 × 10^6
Prime Factorization
9 × 2388641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21497769
Product of the distinct prime numbers
The prime factorization of 21497769 is 9 × 2388641.
Since it has a total of 2 prime factors.
9 , 5 , 72 , 87 , 454 , 104 , 5261 , 3511 , 86224 , 31574 , 915950 , 834016 , 6542046 , 7786038 , 30644198 , 75301841 , 776266056 , 802574653 , 3940946792 , 4469054949
n×2
42995538
n×3
64493307
n×4
85991076
n×5
107488845
n÷2
10748884.5
n÷3
7165923
n÷3
5374442.25
n÷5
4299553.8
n2
462154071977361
n3
9.9352814817787E+21
n4
2.1358638624526E+29
n5
4.5916307930453E+36
2 √n
4636.5686665896
3 √n
278.05526996599
4 √n
68.092353951009
5 √n
29.273771487832
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21497768
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21497769 can be divided by 4 positive divisors.
The sum of these divisors (counting 21497769) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010000000011110101001
3
Ternary
1111110012101200
4
Quaternary
1102000132221
5
Quinary
21000412034
6
Senary
2044434413
8
Octal
122003651
10
Decimal
21497769
12
Duodecimal
7248a09
16
Hexadecimal
14807a9
20
Vigesimal
6e7489
36
Base36
csrs9
md5
f392b2d843455337924769b8722d453d
sha1
f3f3d2594c7b38f92e5c28b0f8c150ac0a43fa58
sha256
6c948925adc7439829c1cc368b15ff420c38d30a88f5ded0a61a1073fba4f051
sha512
9f35a95e32b551d2d31b015506afb70ca4a8152cc956380c02569d5240c7e1546f7a75c4b4aaa329e31730983ab1b4353bced0307220f69493fcefcefae2c85e
ripemd-160
8cc5ff3d884394e64c33d8b342e03d15b8c0e89d
Diameter
42995538
Circumference
135074466.31794
Area
1.4518998373507E+15
Volume
4.161680975267E+22
Surface area
5.8075993494027E+15
Circumference
135074466.31794
Perimeter
85991076
Area
462154071977361
Diagonal
30402436.480564
Surface area
2772924431864166
Volume
9.9352814817787E+21
Space diagonal
37235228.157379
Perimeter
64493307
Area
2.0011858339741E+14
Altitude
18617614.07869
Surface area
2.0011858339741E+14
Volume
1.1708841514605E+21
Height
10134145.493521