21438045 is an odd 8-digits composite number following 21438044
and preceding 21438046 . In scientific notation, it is written as 2.1438045 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 11433600 positive integers (up to 21438045) that are relatively prime to 21438045.
21438045 has 8 divisors, whose sum is 28584120
The reverse of 21438045 is 54083412
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million four hundred thirty-eight thousand forty-five
Scientific notation
2.1438045 × 10^7
Engineering notation
2.1438045 × 10^6
Prime Factorization
9 × 5 × 476401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21438045
Product of the distinct prime numbers
The prime factorization of 21438045 is 9 × 5 × 476401.
Since it has a total of 3 prime factors.
7 , 7 , 78 , 78 , 140 , 506 , 7681 , 3823 , 95542 , 99480 , 714599 , 550305 , 1480303 , 9345273 , 14570579 , 65690675 , 571191803 , 597059696 , 752471091 , 1067014508
n×2
42876090
n×3
64314135
n×4
85752180
n×5
107190225
n÷2
10719022.5
n÷3
7146015
n÷3
5359511.25
n÷5
4287609
n2
459589773422025
n3
9.8527062441612E+21
n4
2.1122275983411E+29
n5
4.5282030303478E+36
2 √n
4630.1236484569
3 √n
277.79753817945
4 √n
68.045011929288
5 √n
29.257488004275
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
-21438044
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 21438045 can be divided by 8 positive divisors.
The sum of these divisors (counting 21438045) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110001111001011101
3
Ternary
1111100011110200
4
Quaternary
1101301321131
5
Quinary
20442004140
6
Senary
2043254113
8
Octal
121617135
10
Decimal
21438045
12
Duodecimal
721a339
16
Hexadecimal
1471e5d
20
Vigesimal
6djf25
36
Base36
crhp9
md5
117b14ab321e4ce6e20a5f3aee055861
sha1
c17bfc11c8178b8bc7237f772aee908e024d4446
sha256
f0812ef278867fb6f41b5f7f501d5789361e8a2558cc213fa2408e9bd8adf6b9
sha512
4b1b610f636b3d275ae9830388bccc8f042a92392651a5fa18344410db66c370ea805bfd7034d7f1b4157d05fc3f857c09e10ff9655ba56e1781f8d53d789d1c
ripemd-160
ea734eca770ad79008c25e69b937d5d88598c024
Diameter
42876090
Circumference
134699209.35865
Area
1.4438438558476E+15
Volume
4.127091940618E+22
Surface area
5.7753754233905E+15
Circumference
134699209.35865
Perimeter
85752180
Area
459589773422025
Diagonal
30317973.989765
Surface area
2757538640532150
Volume
9.8527062441612E+21
Space diagonal
37131783.154948
Perimeter
64314135
Area
1.990082095515E+14
Altitude
18565891.577474
Surface area
1.990082095515E+14
Volume
1.1611525663809E+21
Height
10105991.329922