21969969 is an odd 8-digits composite number following 21969968
and preceding 21969970 . In scientific notation, it is written as 2.1969969 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 12554256 positive integers (up to 21969969) that are relatively prime to 21969969.
21969969 has 8 divisors, whose sum is 33478080
The reverse of 21969969 is 96996912
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty-one million nine hundred sixty-nine thousand nine hundred sixty-nine
Scientific notation
2.1969969 × 10^7
Engineering notation
2.1969969 × 10^6
Prime Factorization
3 × 7 × 1046189
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21969969
Product of the distinct prime numbers
The prime factorization of 21969969 is 3 × 7 × 1046189.
Since it has a total of 3 prime factors.
7 , 10 , 91 , 87 , 169 , 190 , 8458 , 7136 , 63667 , 54093 , 367619 , 566325 , 3606279 , 539078 , 18709819 , 97414941 , 443526747 , 516672600 , 3821435212 , 1950999600
n×2
43939938
n×3
65909907
n×4
87879876
n×5
109849845
n÷2
10984984.5
n÷3
7323323
n÷3
5492492.25
n÷5
4393993.8
n2
482679537860961
n3
1.060445448374E+22
n4
2.3297953626967E+29
n5
5.118553189479E+36
2 √n
4687.2133512355
3 √n
280.07637797336
4 √n
68.463226269549
5 √n
29.401256357178
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
-21969968
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 21969969 can be divided by 8 positive divisors.
The sum of these divisors (counting 21969969) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011110011110000110001
3
Ternary
1112100012010120
4
Quaternary
1103303300301
5
Quinary
21111014334
6
Senary
2102520453
8
Octal
123636061
10
Decimal
21969969
12
Duodecimal
7436129
16
Hexadecimal
14f3c31
20
Vigesimal
6h64i9
36
Base36
d2w4x
md5
68eab0c17e1320db393eed16f7f8f599
sha1
427516cb2f300a8b605cfa6383a2e66978eb6311
sha256
c6c9662f6d6e7da1d97334bc880892a0e32065593c6899b6115888fcd7469f7f
sha512
2ea026d66508d157e0cca27422c305f284ffd8d771dc033bdc97ad7b44cff589e1137102b60e39b7dcdbf0862c09d8e3454c08526bb3ef73aeaa8e10400d530a
ripemd-160
bc724e2c9742d8e0866ce8b2bc2f807aa3931f0a
Diameter
43939938
Circumference
138041386.41999
Area
1.5163824901821E+15
Volume
4.4419835068592E+22
Surface area
6.0655299607284E+15
Circumference
138041386.41999
Perimeter
87879876
Area
482679537860961
Diagonal
31070228.124716
Surface area
2896077227165766
Volume
1.060445448374E+22
Space diagonal
38053102.548713
Perimeter
65909907
Area
2.0900637083726E+14
Altitude
19026551.274357
Surface area
2.0900637083726E+14
Volume
1.2497469460394E+21
Height
10356742.708239