21543385 is an odd 8-digits composite number following 21543384
and preceding 21543386 . In scientific notation, it is written as 2.1543385 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 17234704 positive integers (up to 21543385) that are relatively prime to 21543385.
21543385 has 4 divisors, whose sum is 25852068
The reverse of 21543385 is 58334512
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million five hundred forty-three thousand three hundred eighty-five
Scientific notation
2.1543385 × 10^7
Engineering notation
2.1543385 × 10^6
Prime Factorization
5 × 4308677
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21543385
Product of the distinct prime numbers
The prime factorization of 21543385 is 5 × 4308677.
Since it has a total of 2 prime factors.
10 , 10 , 78 , 40 , 622 , 254 , 1332 , 9157 , 87052 , 63051 , 236528 , 6343 , 4014929 , 4715021 , 12275104 , 44875606 , 870145268 , 290572210 , 6111589548 , 8203991738
n×2
43086770
n×3
64630155
n×4
86173540
n×5
107716925
n÷2
10771692.5
n÷3
7181128.3333333
n÷3
5385846.25
n÷5
4308677
n2
464117437258225
n3
9.9986606360673E+21
n4
2.1540499556714E+29
n5
4.6405527504262E+36
2 √n
4641.4852148854
3 √n
278.25179901897
4 √n
68.128446444091
5 √n
29.286184128513
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
-21543384
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 21543385 can be divided by 4 positive divisors.
The sum of these divisors (counting 21543385) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001011100111011001
3
Ternary
1111112111222011
4
Quaternary
1102023213121
5
Quinary
21003342020
6
Senary
2045425521
8
Octal
122134731
10
Decimal
21543385
12
Duodecimal
726b2a1
16
Hexadecimal
148b9d9
20
Vigesimal
6eci95
36
Base36
ctqzd
md5
ac352e4dd35521e41939ee6fc752c8a9
sha1
da33773176522b3089bd7a6b1baeca0f3713ceca
sha256
20dc036b144eaf13306f337b4fb22bd97b6341f1044456bf9b98da2d318a19da
sha512
8d4209741694efd0e9400cf60591e8bfbb0bba73b8d9516193cfd76360fd8974fe625c8ea840660f7c4763e52c572bd6a63db11df45461a1048cf1ff59ceca76
ripemd-160
29a71ef17395143e9a54c786ba16ed9b8686eb6c
Diameter
43086770
Circumference
135361080.09891
Area
1.4580679312934E+15
Volume
4.1882291733342E+22
Surface area
5.8322717251734E+15
Circumference
135361080.09891
Perimeter
86173540
Area
464117437258225
Diagonal
30466947.246425
Surface area
2784704623549350
Volume
9.9986606360673E+21
Space diagonal
37314237.387017
Perimeter
64630155
Area
2.0096874550248E+14
Altitude
18657118.693509
Surface area
2.0096874550248E+14
Volume
1.1783534564244E+21
Height
10155649.082142