21449649 is an odd 8-digits composite number following 21449648
and preceding 21449650 . In scientific notation, it is written as 2.1449649 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 13199472 positive integers (up to 21449649) that are relatively prime to 21449649.
21449649 has 12 divisors, whose sum is 30969456
The reverse of 21449649 is 94694412
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred forty-nine thousand six hundred forty-nine
Scientific notation
2.1449649 × 10^7
Engineering notation
2.1449649 × 10^6
Prime Factorization
3 × 13 × 13 × 42307
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1649973
Product of the distinct prime numbers
The prime factorization of 21449649 is 3 × 13 × 13 × 42307.
Since it has a total of 4 prime factors.
3 , 3 , 98 , 43 , 299 , 345 , 1636 , 1310 , 39629 , 23286 , 335137 , 959704 , 6702287 , 3878864 , 94260316 , 3466899 , 503085506 , 849196363 , 3347767162 , 2392202423
n×2
42899298
n×3
64348947
n×4
85798596
n×5
107248245
n÷2
10724824.5
n÷3
7149883
n÷3
5362412.25
n÷5
4289929.8
n2
460087442223201
n3
9.8687141449954E+21
n4
2.1168045449149E+29
n5
4.5404714490029E+36
2 √n
4631.3765772176
3 √n
277.8476512874
4 √n
68.054217923782
5 √n
29.260654621454
1 , 3 , 13 , 39 , 169 , 507 , 42307 , 126921 , 549991 , 1649973 , 7149883 , 21449649
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21449648
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21449649 can be divided by 12 positive divisors.
The sum of these divisors (counting 21449649) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001110100101110110001
3
Ternary
1111100202101110
4
Quaternary
1101310232301
5
Quinary
20442342044
6
Senary
2043423533
8
Octal
121645661
10
Decimal
21449649
12
Duodecimal
7224ba9
16
Hexadecimal
1474bb1
20
Vigesimal
6e1429
36
Base36
crqnl
md5
6ba677b27c744b495eae39fa35bed7ed
sha1
0559cfc76f5822bc987b8e33759c38b2c862ff28
sha256
459db9e01ea0b65b72729c64b09551200084e1418d619238eb05b36bbf81d09e
sha512
cca28bb7a6e0c2098560080e1abf21db4961abd46202d2936f2eb1ab23f67b86b33a08d69f28c12bcb75f5c3522370ab45c86962b16462c149a130477f4d172c
ripemd-160
f9cf933f9f38e4d916674e95904b69a8dc22e617
Diameter
42899298
Circumference
134772119.44096
Area
1.4454073284973E+15
Volume
4.1337973144394E+22
Surface area
5.7816293139893E+15
Circumference
134772119.44096
Perimeter
85798596
Area
460087442223201
Diagonal
30334384.523942
Surface area
2760524653339206
Volume
9.8687141449954E+21
Space diagonal
37151881.872519
Perimeter
64348947
Area
1.9922370646375E+14
Altitude
18575940.936259
Surface area
1.9922370646375E+14
Volume
1.1630391155863E+21
Height
10111461.507981