21458047 is an odd 8-digits composite number following 21458046
and preceding 21458048 . In scientific notation, it is written as 2.1458047 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 19111680 positive integers (up to 21458047) that are relatively prime to 21458047.
21458047 has 16 divisors, whose sum is 23933952
The reverse of 21458047 is 74085412
Previous prime number is 317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million four hundred fifty-eight thousand forty-seven
Scientific notation
2.1458047 × 10^7
Engineering notation
2.1458047 × 10^6
Prime Factorization
13 × 41 × 317 × 127
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21458047
Product of the distinct prime numbers
The prime factorization of 21458047 is 13 × 41 × 317 × 127.
Since it has a total of 4 prime factors.
7 , 7 , 56 , 21 , 568 , 877 , 9254 , 2667 , 32946 , 85458 , 46226 , 372901 , 7735257 , 2153604 , 31805184 , 28693119 , 891693962 , 682562422 , 860311456 , 1705021904
n×2
42916094
n×3
64374141
n×4
85832188
n×5
107290235
n÷2
10729023.5
n÷3
7152682.3333333
n÷3
5364511.75
n÷5
4291609.4
n2
460447781054209
n3
9.8803101269069E+21
n4
2.1201215907774E+29
n5
4.5493668740617E+36
2 √n
4632.2831303797
3 √n
277.88390767123
4 √n
68.060878119369
5 √n
29.262945498129
1 , 13 , 41 , 127 , 317 , 533 , 1651 , 4121 , 5207 , 12997 , 40259 , 67691 , 168961 , 523367 , 1650619 , 21458047
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21458046
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21458047 can be divided by 16 positive divisors.
The sum of these divisors (counting 21458047) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001110110110001111111
3
Ternary
1111101011220111
4
Quaternary
1101312301333
5
Quinary
20443124142
6
Senary
2043530451
8
Octal
121666177
10
Decimal
21458047
12
Duodecimal
7229a27
16
Hexadecimal
1476c7f
20
Vigesimal
6e2527
36
Base36
crx4v
md5
070f74519517a93a951c1555c671e32c
sha1
a1e6c463465971e9943b7a8a71de8ab8a4e057d8
sha256
0f9f3afabd7f7fb10e75e9b14b611c2e809b0e040d6fa524c87e4904831363b1
sha512
23e159f0054f457647e73ce95cd5645e8bcc1cb3c82a695b9c750dc6ae8d5ddc029fe7a7af1afa00e095dcef8dd369f5838abaa0f80453a951d19034cdad9933
ripemd-160
79ccc6cb364ba7346c356b5c5ed1d20710788be1
Diameter
42916094
Circumference
134824885.63117
Area
1.4465393663216E+15
Volume
4.138654627984E+22
Surface area
5.7861574652865E+15
Circumference
134824885.63117
Perimeter
85832188
Area
460447781054209
Diagonal
30346261.089439
Surface area
2762686686325254
Volume
9.8803101269069E+21
Space diagonal
37166427.635201
Perimeter
64374141
Area
1.9937973775456E+14
Altitude
18583213.8176
Surface area
1.9937973775456E+14
Volume
1.1644057151603E+21
Height
10115420.363146