21969986 is an even 8-digits composite number following 21969985
and preceding 21969987 . In scientific notation, it is written as 2.1969986 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 10984992 positive integers (up to 21969986) that are relatively prime to 21969986.
21969986 has 4 divisors, whose sum is 32954982
The reverse of 21969986 is 68996912
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
twenty-one million nine hundred sixty-nine thousand nine hundred eighty-six
Scientific notation
2.1969986 × 10^7
Engineering notation
2.1969986 × 10^6
Prime Factorization
2 × 10984993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21969986
Product of the distinct prime numbers
The prime factorization of 21969986 is 2 × 10984993.
Since it has a total of 2 prime factors.
2 , 1 , 50 , 52 , 686 , 929 , 7780 , 6917 , 19806 , 35961 , 34587 , 137516 , 8476482 , 4815107 , 62710936 , 32688462 , 891159952 , 239993735 , 6201266957 , 5984397621
n×2
43939972
n×3
65909958
n×4
87879944
n×5
109849930
n÷2
10984993
n÷3
7323328.6666667
n÷3
5492496.5
n÷5
4393997.2
n2
482680284840196
n3
1.0604479100415E+22
n4
2.3298025737341E+29
n5
5.1185729927703E+36
2 √n
4687.2151646793
3 √n
280.07645021284
4 √n
68.463239513474
5 √n
29.401260907218
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
-21969985
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 21969986 can be divided by 4 positive divisors.
The sum of these divisors (counting 21969986) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011110011110001000010
3
Ternary
1112100012011012
4
Quaternary
1103303301002
5
Quinary
21111014421
6
Senary
2102520522
8
Octal
123636102
10
Decimal
21969986
12
Duodecimal
7436142
16
Hexadecimal
14f3c42
20
Vigesimal
6h64j6
36
Base36
d2w5e
md5
730e805942cba6690dfbb5bd1cc8af6e
sha1
731c1e91cc02e2896196ef8a0f6dbd66f9f0ec89
sha256
404b9266b3beac862002ad041e6adf0ebea927515edbed6396810903b8b971ea
sha512
166dce6fb0c1a45b8a73523d6a0da573f6d736cd87f39f826b86e186a10644df3acf9ba173f4a762c9ee3df911d52c82d51cf281691f49c6f5ddbd3f67b5e25e
ripemd-160
0bb427cbc73894ffb854cd47b0ec849017d8fb2b
Diameter
43939972
Circumference
138041493.23414
Area
1.5163848368866E+15
Volume
4.4419938182681E+22
Surface area
6.0655393475464E+15
Circumference
138041493.23414
Perimeter
87879944
Area
482680284840196
Diagonal
31070252.166347
Surface area
2896081709041176
Volume
1.0604479100415E+22
Space diagonal
38053131.993577
Perimeter
65909958
Area
2.0900669428876E+14
Altitude
19026565.996788
Surface area
2.0900669428876E+14
Volume
1.2497498471424E+21
Height
10356750.722116