21388453 is an odd 8-digits composite number following 21388452
and preceding 21388454 . In scientific notation, it is written as 2.1388453 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 21277440 positive integers (up to 21388453) that are relatively prime to 21388453.
21388453 has 4 divisors, whose sum is 21499468
The reverse of 21388453 is 35488312
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million three hundred eighty-eight thousand four hundred fifty-three
Scientific notation
2.1388453 × 10^7
Engineering notation
2.1388453 × 10^6
Prime Factorization
193 × 110821
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21388453
Product of the distinct prime numbers
The prime factorization of 21388453 is 193 × 110821.
Since it has a total of 2 prime factors.
8 , 1 , 52 , 77 , 204 , 23 , 6963 , 1392 , 11229 , 79358 , 933858 , 516418 , 9012003 , 4669463 , 37167878 , 26966709 , 309294745 , 797629335 , 3282502715 , 5979538792
n×2
42776906
n×3
64165359
n×4
85553812
n×5
106942265
n÷2
10694226.5
n÷3
7129484.3333333
n÷3
5347113.25
n÷5
4277690.6
n2
457465921733209
n3
9.7844883660924E+21
n4
2.0927506954721E+29
n5
4.4760699890823E+36
2 √n
4624.7651832282
3 √n
277.58316583131
4 √n
68.005626114522
5 √n
29.24393936422
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21388452
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21388453 can be divided by 4 positive divisors.
The sum of these divisors (counting 21388453) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100101110010100101
3
Ternary
1111020122102221
4
Quaternary
1101211302211
5
Quinary
20433412303
6
Senary
2042232341
8
Octal
121456245
10
Decimal
21388453
12
Duodecimal
71b56b1
16
Hexadecimal
1465ca5
20
Vigesimal
6ddb2d
36
Base36
cqffp
md5
cb6555f25ef04a18c73de649e92abd29
sha1
11483606c81b2d5ec5a7044cf0a231eeb96bb3e9
sha256
097cce6d0076e5e91435750480c6d2465da030c0ce6b663385e8006aa495118d
sha512
97df210545df9299041a5c08a8af992e1ae249429f99caa2113d0cc3eb302f60c3aeda18716c5f5a06d1419d22f279b59b661fdeea426409b2ccbb041e0b5713
ripemd-160
f7fc4f5bec49d981867485566218c81be2b6a892
Diameter
42776906
Circumference
134387613.6329
Area
1.4371715789847E+15
Volume
4.0985169026734E+22
Surface area
5.7486863159389E+15
Circumference
134387613.6329
Perimeter
85553812
Area
457465921733209
Diagonal
30247840.31078
Surface area
2744795530399254
Volume
9.7844883660924E+21
Space diagonal
37045887.291299
Perimeter
64165359
Area
1.9808855479331E+14
Altitude
18522943.645649
Surface area
1.9808855479331E+14
Volume
1.1531130123508E+21
Height
10082613.436927