21438047 is an odd 8-digits composite number following 21438046
and preceding 21438048 . In scientific notation, it is written as 2.1438047 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 19798240 positive integers (up to 21438047) that are relatively prime to 21438047.
21438047 has 8 divisors, whose sum is 23142240
The reverse of 21438047 is 74083412
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred thirty-eight thousand forty-seven
Scientific notation
2.1438047 × 10^7
Engineering notation
2.1438047 × 10^6
Prime Factorization
23 × 29 × 32141
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21438047
Product of the distinct prime numbers
The prime factorization of 21438047 is 23 × 29 × 32141.
Since it has a total of 3 prime factors.
4 , 9 , 16 , 9 , 276 , 661 , 4687 , 1466 , 23634 , 21317 , 60586 , 490596 , 6479185 , 8755968 , 7053403 , 7160212 , 8534273 , 459143664 , 8376550923 , 8271247875
n×2
42876094
n×3
64314141
n×4
85752188
n×5
107190235
n÷2
10719023.5
n÷3
7146015.6666667
n÷3
5359511.75
n÷5
4287609.4
n2
459589859174209
n3
9.8527090017001E+21
n4
2.1122283865577E+29
n5
4.5282051425758E+36
2 √n
4630.1238644339
3 √n
277.79754681822
4 √n
68.045013516303
5 √n
29.257488550173
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
-21438046
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 21438047 can be divided by 8 positive divisors.
The sum of these divisors (counting 21438047) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110001111001011111
3
Ternary
1111100011110202
4
Quaternary
1101301321133
5
Quinary
20442004142
6
Senary
2043254115
8
Octal
121617137
10
Decimal
21438047
12
Duodecimal
721a33b
16
Hexadecimal
1471e5f
20
Vigesimal
6djf27
36
Base36
crhpb
md5
0c811655c068210af0e6375ce2317b1c
sha1
ccd32d7e7da9817eb9bc9eb5baa08ceb36bac946
sha256
f81532df082fd88bf3fbdeb99468d1766f2f816fe094c484786bc6205352bd0f
sha512
55947a18bf33726d8d481ffecd1728f19221c40e194d629a98b9100a97323eef7cb9e22aa812b970512b3273f964a15b3d72e03e65d9e02b346fac59f178bfe5
ripemd-160
451d8dcb42ff62c5347756aa282f0710a075ea74
Diameter
42876094
Circumference
134699221.92503
Area
1.4438441252461E+15
Volume
4.1270930956932E+22
Surface area
5.7753765009842E+15
Circumference
134699221.92503
Perimeter
85752188
Area
459589859174209
Diagonal
30317976.818192
Surface area
2757539155045254
Volume
9.8527090017001E+21
Space diagonal
37131786.61905
Perimeter
64314141
Area
1.9900824668329E+14
Altitude
18565893.309525
Surface area
1.9900824668329E+14
Volume
1.16115289136E+21
Height
10105992.272731