21491607 is an odd 8-digits composite number following 21491606
and preceding 21491608 . In scientific notation, it is written as 2.1491607 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14327736 positive integers (up to 21491607) that are relatively prime to 21491607.
21491607 has 4 divisors, whose sum is 28655480
The reverse of 21491607 is 70619412
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety-one thousand six hundred seven
Scientific notation
2.1491607 × 10^7
Engineering notation
2.1491607 × 10^6
Prime Factorization
3 × 7163869
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21491607
Product of the distinct prime numbers
The prime factorization of 21491607 is 3 × 7163869.
Since it has a total of 2 prime factors.
6 , 4 , 98 , 37 , 581 , 67 , 1377 , 765 , 79561 , 48536 , 964085 , 947663 , 3959135 , 3410672 , 7996003 , 36207629 , 256840427 , 761500943 , 4009732016 , 1368535224
n×2
42983214
n×3
64474821
n×4
85966428
n×5
107458035
n÷2
10745803.5
n÷3
7163869
n÷3
5372901.75
n÷5
4298321.4
n2
461889171442449
n3
9.9267405501967E+21
n4
2.1334160669579E+29
n5
4.5850539678545E+36
2 √n
4635.9041189395
3 √n
278.02870069262
4 √n
68.087474023784
5 √n
29.272093121437
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
-21491606
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 21491607 can be divided by 4 positive divisors.
The sum of these divisors (counting 21491607) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110111110010111
3
Ternary
1111102212221110
4
Quaternary
1101332332113
5
Quinary
21000212412
6
Senary
2044350103
8
Octal
121767627
10
Decimal
21491607
12
Duodecimal
7245333
16
Hexadecimal
147ef97
20
Vigesimal
6e6907
36
Base36
csn13
md5
45ed2a684e5830e5fbd489aa9289814e
sha1
4eb8aab27d3e7dacba3707c45d6e3f27948295b8
sha256
39253882a8637fb419cbfea9bdd4ceaeb86492b2daf28a90a41a04f2fc325db8
sha512
af3de71f1a80fb427c9c26711c65351e393ad72069019e0f7bebbb492edf32c1247fd3c8dad7d4d19f803579713f2602e8a2198eb9a29d88fcc0175f16adfdbc
ripemd-160
46dcdfc85c0f24a879793793188d6fca1d77a7f0
Diameter
42983214
Circumference
135035749.33008
Area
1.4510676277763E+15
Volume
4.158103358212E+22
Surface area
5.8042705111051E+15
Circumference
135035749.33008
Perimeter
85966428
Area
461889171442449
Diagonal
30393722.096593
Surface area
2771335028654694
Volume
9.9267405501967E+21
Space diagonal
37224555.260303
Perimeter
64474821
Area
2.0000387810105E+14
Altitude
18612277.630151
Surface area
2.0000387810105E+14
Volume
1.1698775930206E+21
Height
10131240.698864