21438025 is an odd 8-digits composite number following 21438024
and preceding 21438026 . In scientific notation, it is written as 2.1438025 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 14700240 positive integers (up to 21438025) that are relatively prime to 21438025.
21438025 has 8 divisors, whose sum is 26460864
The reverse of 21438025 is 52083412
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred thirty-eight thousand twenty-five
Scientific notation
2.1438025 × 10^7
Engineering notation
2.1438025 × 10^6
Prime Factorization
35 × 5 × 122503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21438025
Product of the distinct prime numbers
The prime factorization of 21438025 is 35 × 5 × 122503.
Since it has a total of 3 prime factors.
3 , 7 , 39 , 7 , 222 , 43 , 8739 , 7487 , 51934 , 84520 , 753956 , 979771 , 8408968 , 5917588 , 97625462 , 41644298 , 676465858 , 559888292 , 5773052359 , 3199616400
n×2
42876050
n×3
64314075
n×4
85752100
n×5
107190125
n÷2
10719012.5
n÷3
7146008.3333333
n÷3
5359506.25
n÷5
4287605
n2
459588915900625
n3
9.8526786688005E+21
n4
2.1122197161871E+29
n5
4.5281819081112E+36
2 √n
4630.1214886869
3 √n
277.79745179171
4 √n
68.044996059129
5 √n
29.257482545288
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
-21438024
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 21438025 can be divided by 8 positive divisors.
The sum of these divisors (counting 21438025) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110001111001001001
3
Ternary
1111100011102221
4
Quaternary
1101301321021
5
Quinary
20442004100
6
Senary
2043254041
8
Octal
121617111
10
Decimal
21438025
12
Duodecimal
721a321
16
Hexadecimal
1471e49
20
Vigesimal
6djf15
36
Base36
crhop
md5
2893cf715f9661abe7c8fc902de5eecc
sha1
b589ce917c2a47e018bf3601a7c48668d418e264
sha256
cafa12f561b17d705158f22dc1a86cb29cc89847ccd172b928126a6d552de6ed
sha512
83019f1add061451cdb88f4df164bceec6b3c3f08e82e42cfa409389d62700f649a97302b61b9a9794ff757762937996c48d793a7fd9734af3954d2f520e8dc8
ripemd-160
a9edc8185937f6f676015ae764467c2f824edbed
Diameter
42876050
Circumference
134699083.69495
Area
1.4438411618647E+15
Volume
4.1270803898779E+22
Surface area
5.7753646474588E+15
Circumference
134699083.69495
Perimeter
85752100
Area
459588915900625
Diagonal
30317945.705493
Surface area
2757533495403750
Volume
9.8526786688005E+21
Space diagonal
37131748.513932
Perimeter
64314075
Area
1.9900783823385E+14
Altitude
18565874.256966
Surface area
1.9900783823385E+14
Volume
1.1611493165935E+21
Height
10105981.901831