21490847 is an odd 8-digits composite number following 21490846
and preceding 21490848 . In scientific notation, it is written as 2.1490847 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 17772480 positive integers (up to 21490847) that are relatively prime to 21490847.
21490847 has 8 divisors, whose sum is 24600576
The reverse of 21490847 is 74809412
Previous prime number is 4223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million four hundred ninety thousand eight hundred forty-seven
Scientific notation
2.1490847 × 10^7
Engineering notation
2.1490847 × 10^6
Prime Factorization
7 × 4223 × 727
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21490847
Product of the distinct prime numbers
The prime factorization of 21490847 is 7 × 4223 × 727.
Since it has a total of 3 prime factors.
5 , 3 , 70 , 94 , 704 , 933 , 6122 , 873 , 75842 , 18043 , 698850 , 640916 , 241579 , 716977 , 88857328 , 27934621 , 880432659 , 504560449 , 1770997633 , 7576888263
n×2
42981694
n×3
64472541
n×4
85963388
n×5
107454235
n÷2
10745423.5
n÷3
7163615.6666667
n÷3
5372711.75
n÷5
4298169.4
n2
461856504777409
n3
9.9256874801261E+21
n4
2.133114310052E+29
n5
4.5842433270839E+36
2 √n
4635.8221493064
3 √n
278.02542337754
4 √n
68.086872077563
5 √n
29.271886090799
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
-21490846
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 21490847 can be divided by 8 positive divisors.
The sum of these divisors (counting 21490847) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110110010011111
3
Ternary
1111102211220022
4
Quaternary
1101332302133
5
Quinary
21000201342
6
Senary
2044342355
8
Octal
121766237
10
Decimal
21490847
12
Duodecimal
72449bb
16
Hexadecimal
147ec9f
20
Vigesimal
6e6727
36
Base36
csmfz
md5
be2339ace47721a6eaa14fbbb110f881
sha1
f4c6e418d77f0c6bf72ebb45c44589c698ca9b05
sha256
9b632e3d93c1409d88ebae286b683d0f9dbc714db4d314ada3a6803af4556158
sha512
f60e6ff1390c5692aef5414b6ec4834364950d8e2e71103bde7c06bbe14f6ab4f66a5ca19e05f2bef662fbb7363d94d785eb21de8280de6e4d4e16c137440d25
ripemd-160
1b1398a08dfda026b07a084e2c2697666a334f1e
Diameter
42981694
Circumference
135030974.10924
Area
1.4509650024214E+15
Volume
4.1576622492523E+22
Surface area
5.8038600096855E+15
Circumference
135030974.10924
Perimeter
85963388
Area
461856504777409
Diagonal
30392647.294285
Surface area
2771139028664454
Volume
9.9256874801261E+21
Space diagonal
37223238.901689
Perimeter
64472541
Area
1.9998973302016E+14
Altitude
18611619.450845
Surface area
1.9998973302016E+14
Volume
1.1697534875226E+21
Height
10130882.431428