21879969 is an odd 8-digits composite number following 21879968
and preceding 21879970 . In scientific notation, it is written as 2.1879969 × 10^7.
The sum of its digits is 51. It has a total of 5 prime factors and 24 positive divisors.
There are 13115520 positive integers (up to 21879969) that are relatively prime to 21879969.
21879969 has 24 divisors, whose sum is 32330592
The reverse of 21879969 is 96997812
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty-one million eight hundred seventy-nine thousand nine hundred sixty-nine
Scientific notation
2.1879969 × 10^7
Engineering notation
2.1879969 × 10^6
Prime Factorization
3 × 23 × 23 × 17 × 811
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
951303
Product of the distinct prime numbers
The prime factorization of 21879969 is 3 × 23 × 23 × 17 × 811.
Since it has a total of 5 prime factors.
2 , 8 , 84 , 39 , 747 , 247 , 4508 , 3954 , 12273 , 28554 , 374513 , 881789 , 3222922 , 8417048 , 77201920 , 96747571 , 483816082 , 921871845 , 3213963921 , 3864955730
n×2
43759938
n×3
65639907
n×4
87519876
n×5
109399845
n÷2
10939984.5
n÷3
7293323
n÷3
5469992.25
n÷5
4375993.8
n2
478733043440961
n3
1.0474664149764E+22
n4
2.2918532688225E+29
n5
5.0145678474384E+36
2 √n
4677.6029117487
3 √n
279.69341016609
4 √n
68.393003383012
5 √n
29.377128333311
1 , 3 , 17 , 23 , 51 , 69 , 391 , 529 , 811 , 1173 , 1587 , 2433 , 8993 , 13787 , 18653 , 26979 , 41361 , 55959 , 317101 , 429019 , 951303 , 1287057 , 7293323 , 21879969
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21879968
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21879969 can be divided by 24 positive divisors.
The sum of these divisors (counting 21879969) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011011101110010100001
3
Ternary
1112011121200020
4
Quaternary
1103131302201
5
Quinary
21100124334
6
Senary
2100544053
8
Octal
123356241
10
Decimal
21879969
12
Duodecimal
73b2029
16
Hexadecimal
14ddca1
20
Vigesimal
6geji9
36
Base36
d0yox
md5
824a2e62775241b442f2850d9d61291b
sha1
c5a1b54c123ed2557d2f69dcc876a414ab027393
sha256
6ce20b8e83634a6b72cffaf6c92ac64b86cf2cb7cd13ad25e5711acacaddc849
sha512
5240253d3c69b3d5fcc86114ddb08a72a6a17780ecf4b5158ba1d36b88096909c182f9fae4ca666a0a97df188f69ef8b59f3c5aa4491780b736d2c0966f2e9dc
ripemd-160
3e3be8a8c233a0324eb92d7163bedb02e8fa3241
Diameter
43759938
Circumference
137475899.74234
Area
1.5039842123048E+15
Volume
4.3876170588958E+22
Surface area
6.0159368492192E+15
Circumference
137475899.74234
Perimeter
87519876
Area
478733043440961
Diagonal
30942948.904103
Surface area
2872398260645766
Volume
1.0474664149764E+22
Space diagonal
37897217.976032
Perimeter
65639907
Area
2.0729748862546E+14
Altitude
18948608.988016
Surface area
2.0729748862546E+14
Volume
1.2344510084916E+21
Height
10314316.301368