21494839 is an odd 8-digits composite number following 21494838
and preceding 21494840 . In scientific notation, it is written as 2.1494839 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 20638176 positive integers (up to 21494839) that are relatively prime to 21494839.
21494839 has 8 divisors, whose sum is 22368960
The reverse of 21494839 is 93849412
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million four hundred ninety-four thousand eight hundred thirty-nine
Scientific notation
2.1494839 × 10^7
Engineering notation
2.1494839 × 10^6
Prime Factorization
53 × 47 × 8629
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21494839
Product of the distinct prime numbers
The prime factorization of 21494839 is 53 × 47 × 8629.
Since it has a total of 3 prime factors.
9 , 10 , 77 , 99 , 570 , 607 , 5508 , 3511 , 84582 , 54225 , 112476 , 226904 , 2976303 , 121256 , 90401903 , 87433209 , 453400804 , 839380247 , 8113857861 , 3695262809
n×2
42989678
n×3
64484517
n×4
85979356
n×5
107474195
n÷2
10747419.5
n÷3
7164946.3333333
n÷3
5373709.75
n÷5
4298967.8
n2
462028103635921
n3
9.9312197011294E+21
n4
2.1346996854941E+29
n5
4.5885026053045E+36
2 √n
4636.2526894034
3 √n
278.04263704337
4 √n
68.090033701
5 √n
29.272973481053
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
-21494838
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 21494839 can be divided by 8 positive divisors.
The sum of these divisors (counting 21494839) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111110000110111
3
Ternary
1111110001101011
4
Quaternary
1101333300313
5
Quinary
21000313324
6
Senary
2044413051
8
Octal
121776067
10
Decimal
21494839
12
Duodecimal
7247187
16
Hexadecimal
147fc37
20
Vigesimal
6e6h1j
36
Base36
cspiv
md5
1122a92493a6f70f26e7e6adad07ff38
sha1
717bfaaa1604217394b979c26ed1c0a54e730f05
sha256
6d67e74e0e5ffd100cb1fdec346da87518ef34b1ea8eec6bb99560e95cc16bdb
sha512
42b106a1725374e98b89d218d636978c2c5aa2bdae826c8c1b808ed78186debba93caafe706fcd379b829ec72cf1890bf042a995f579732f1f4aa2410ac040f3
ripemd-160
589aa9ab15a27ed6f2a16c9c83b350bcccaa3912
Diameter
42989678
Circumference
135056056.58499
Area
1.4515040961346E+15
Volume
4.1599795805673E+22
Surface area
5.8060163845385E+15
Circumference
135056056.58499
Perimeter
85979356
Area
462028103635921
Diagonal
30398292.834826
Surface area
2772168621815526
Volume
9.9312197011294E+21
Space diagonal
37230153.248513
Perimeter
64484517
Area
2.0006403750553E+14
Altitude
18615076.624256
Surface area
2.0006403750553E+14
Volume
1.1704054660203E+21
Height
10132764.278275