21087543 is an odd 8-digits composite number following 21087542
and preceding 21087544 . In scientific notation, it is written as 2.1087543 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14058360 positive integers (up to 21087543) that are relatively prime to 21087543.
21087543 has 4 divisors, whose sum is 28116728
The reverse of 21087543 is 34578012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eighty-seven thousand five hundred forty-three
Scientific notation
2.1087543 × 10^7
Engineering notation
2.1087543 × 10^6
Prime Factorization
3 × 7029181
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21087543
Product of the distinct prime numbers
The prime factorization of 21087543 is 3 × 7029181.
Since it has a total of 2 prime factors.
2 , 5 , 52 , 98 , 972 , 284 , 36 , 1208 , 70520 , 45031 , 925161 , 823758 , 5916327 , 5361308 , 64180583 , 86693209 , 734602634 , 868328311 , 2640262029 , 3048940911
n×2
42175086
n×3
63262629
n×4
84350172
n×5
105437715
n÷2
10543771.5
n÷3
7029181
n÷3
5271885.75
n÷5
4217508.6
n2
444684469776849
n3
9.3773028778515E+21
n4
1.9774427766072E+29
n5
4.1699409581743E+36
2 √n
4592.1174854309
3 √n
276.27525836628
4 √n
67.765164247059
5 √n
29.161186890128
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
-21087542
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 21087543 can be divided by 4 positive divisors.
The sum of these divisors (counting 21087543) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011100010100110111
3
Ternary
1110200100200010
4
Quaternary
1100130110313
5
Quinary
20344300133
6
Senary
2031551303
8
Octal
120342467
10
Decimal
21087543
12
Duodecimal
708b533
16
Hexadecimal
141c537
20
Vigesimal
6bfih3
36
Base36
cjz93
md5
e71b46d8330405f235ed486f505ec886
sha1
411309b73312e0a3119cf951718ce467a93e6027
sha256
a8275ca31a3b3360fb9167e1ab5ed43eabdd725aa8ee41f1052ceeb7a27d828d
sha512
8007bc46152cdfa9930aec9c4a64904503e1fb6361a40bd260d18f530faba2b5cf872d7fe74062e8f0ef1c275f480333b90dd110b9953f775fdceb2febff51e7
ripemd-160
fb1b6fe5089adce689be733c2f9f8e166ff19b8a
Diameter
42175086
Circumference
132496940.34212
Area
1.3970174634164E+15
Volume
3.927955444206E+22
Surface area
5.5880698536657E+15
Circumference
132496940.34212
Perimeter
84350172
Area
444684469776849
Diagonal
29822289.307726
Surface area
2668106818661094
Volume
9.3773028778515E+21
Space diagonal
36524695.882793
Perimeter
63262629
Area
1.9255402374758E+14
Altitude
18262347.941397
Surface area
1.9255402374758E+14
Volume
1.1051257423615E+21
Height
9940763.1025753