21479969 is an odd 8-digits composite number following 21479968
and preceding 21479970 . In scientific notation, it is written as 2.1479969 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 18411396 positive integers (up to 21479969) that are relatively prime to 21479969.
21479969 has 4 divisors, whose sum is 24548544
The reverse of 21479969 is 96997412
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million four hundred seventy-nine thousand nine hundred sixty-nine
Scientific notation
2.1479969 × 10^7
Engineering notation
2.1479969 × 10^6
Prime Factorization
7 × 3068567
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21479969
Product of the distinct prime numbers
The prime factorization of 21479969 is 7 × 3068567.
Since it has a total of 2 prime factors.
10 , 6 , 98 , 77 , 553 , 261 , 3869 , 9026 , 65919 , 90982 , 873642 , 942048 , 628699 , 2428964 , 16351909 , 69945966 , 164754730 , 867411464 , 2626151925 , 6021647200
n×2
42959938
n×3
64439907
n×4
85919876
n×5
107399845
n÷2
10739984.5
n÷3
7159989.6666667
n÷3
5369992.25
n÷5
4295993.8
n2
461389068240961
n3
9.9106228827547E+21
n4
2.1287987229226E+29
n5
4.5726530575618E+36
2 √n
4634.6487461295
3 √n
277.97850617944
4 √n
68.078254576109
5 √n
29.268922186528
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
-21479968
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 21479969 can be divided by 4 positive divisors.
The sum of these divisors (counting 21479969) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111100001000100001
3
Ternary
1111102021222102
4
Quaternary
1101330020201
5
Quinary
20444324334
6
Senary
2044220145
8
Octal
121741041
10
Decimal
21479969
12
Duodecimal
723a655
16
Hexadecimal
147c221
20
Vigesimal
6e4ji9
36
Base36
cse1t
md5
454102b3718329634b38c56053164a4a
sha1
7a4a4438c0de90355dbbb113a219ad08d283e2a2
sha256
56b4bc48ff967b8668b8be37d94624ffed6003ae64649768e5660495a51b115c
sha512
cf85324068a0aabc14a1f2259e783e9d9479b7ccad3486b39b363854763e7c32fe94f9bf76e01d205d2c208227ef35d1f9f6a24df122877d3c4e4275bb663a57
ripemd-160
7baa17551bdb4db8bce43de13b73e4c15501cb00
Diameter
42959938
Circumference
134962625.61947
Area
1.4494965072324E+15
Volume
4.1513520054615E+22
Surface area
5.7979860289298E+15
Circumference
134962625.61947
Perimeter
85919876
Area
461389068240961
Diagonal
30377263.479154
Surface area
2768334409445766
Volume
9.9106228827547E+21
Space diagonal
37204397.653004
Perimeter
64439907
Area
1.9978732706255E+14
Altitude
18602198.826502
Surface area
1.9978732706255E+14
Volume
1.1679781076964E+21
Height
10125754.493051